NL161647B - ELECTROMAGNETIC GROOVE GRADE ELEMENT. - Google Patents

ELECTROMAGNETIC GROOVE GRADE ELEMENT.

Info

Publication number: NL161647B
Authority: NL; Netherlands
Prior art keywords: grade element; electromagnetic groove; groove grade; electromagnetic; groove
Prior art date: 1970-06-29

Application number

NL7108816.A

Other languages

Dutch (nl)

Other versions

NL7108816A (en

NL161647C (en

Original Assignee

Grado Joseph

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1970-06-29

Filing date

1971-06-25

Publication date

1979-09-17

1971-06-25 Application filed by Grado Joseph filed Critical Grado Joseph

1971-12-31 Publication of NL7108816A publication Critical patent/NL7108816A/xx

1979-09-17 Publication of NL161647B publication Critical patent/NL161647B/en

1980-02-15 Application granted granted Critical

1980-02-15 Publication of NL161647C publication Critical patent/NL161647C/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Electromagnets (AREA)
Moving Of Heads (AREA)
Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Reciprocating, Oscillating Or Vibrating Motors (AREA)

NL7108816.A 1970-06-29 1971-06-25 ELECTROMAGNETIC GROOVE TABLE ELEMENT. NL161647C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US5062470A	1970-06-29	1970-06-29

Publications (3)

Publication Number	Publication Date
NL7108816A NL7108816A (en)	1971-12-31
NL161647B true NL161647B (en)	1979-09-17
NL161647C NL161647C (en)	1980-02-15

Family

ID=21966368

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7108816.A NL161647C (en)	1970-06-29	1971-06-25	ELECTROMAGNETIC GROOVE TABLE ELEMENT.

Country Status (9)

Country	Link
US (1)	US3683128A (en)
JP (1)	JPS5021241B1 (en)
CA (1)	CA930674A (en)
CH (1)	CH541269A (en)
DE (1)	DE2132127C3 (en)
ES (1)	ES392652A1 (en)
FR (1)	FR2096572B1 (en)
GB (1)	GB1318665A (en)
NL (1)	NL161647C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4174111A (en) *	1973-11-12	1979-11-13	Grado Joseph F	Compressive pivot suspension system for an electromagnetic cartridge
US3881073A (en) *	1973-11-12	1975-04-29	Joseph F Grado	Replaceable stylus-lever generator module for an electromagnetic cartridge
US4031336A (en) *	1975-02-10	1977-06-21	Grado Joseph F	Electromagnetic pickup with magnetic gap displacement generator
AT341240B (en) *	1975-07-29	1978-01-25	Akg Akustische Kino Geraete	CARTRIDGE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2114471A (en) *	1936-06-20	1938-04-19	Bell Telephone Labor Inc	Sound recording and reproducing system
US2456338A (en) *	1945-03-26	1948-12-14	Pure Oil Co	Catalytic polymerization of olefinic hydrocarbons
US2444336A (en) *	1946-01-30	1948-06-29	Lionel B Cornwell	Electrical sound translating device
US3469040A (en) *	1965-04-15	1969-09-23	Empire Scient Corp	Variable reluctance phonograph cartridge
FR1541427A (en) *	1966-10-20	1968-10-04	Matsushita Electric Ind Co Ltd	Magnetic pick-up of stereophonic phonograph
DK124049B (en) *	1969-03-25	1972-09-04	Fonofilm Ind As	Magnetic pick-up.
US3694586A (en) *	1969-11-03	1972-09-26	Joseph F Grado	Toroidal armature stereophonic pickup

1970
- 1970-06-29 US US50624A patent/US3683128A/en not_active Expired - Lifetime
1971
- 1971-06-16 GB GB2816071A patent/GB1318665A/en not_active Expired
- 1971-06-23 CA CA116435A patent/CA930674A/en not_active Expired
- 1971-06-25 CH CH936471A patent/CH541269A/en not_active IP Right Cessation
- 1971-06-25 NL NL7108816.A patent/NL161647C/en not_active IP Right Cessation
- 1971-06-26 ES ES392652A patent/ES392652A1/en not_active Expired
- 1971-06-28 DE DE2132127A patent/DE2132127C3/en not_active Expired
- 1971-06-29 JP JP46046872A patent/JPS5021241B1/ja active Pending
- 1971-06-29 FR FR7123749A patent/FR2096572B1/fr not_active Expired

Also Published As

Publication number	Publication date
DE2132127C3 (en)	1974-12-12
ES392652A1 (en)	1973-08-01
GB1318665A (en)	1973-05-31
CH541269A (en)	1973-08-31
DE2132127A1 (en)	1972-01-05
US3683128A (en)	1972-08-08
CA930674A (en)	1973-07-24
FR2096572A1 (en)	1972-02-18
JPS5021241B1 (en)	1975-07-22
NL7108816A (en)	1971-12-31
NL161647C (en)	1980-02-15
DE2132127B2 (en)	1974-05-16
FR2096572B1 (en)	1977-01-21

Publication	Publication Date	Title
ES196123Y (en)	1975-07-01	SOLENOID.
NL160697C (en)	1979-11-15	ELECTROMAGNETIC GROOVE GRADE ELEMENT.
CH547407A (en)	1974-03-29	ELEMENT DE CLOISON AMOVIBLE.
DK129766B (en)	1974-11-18	Salvebase.
NL161647B (en)	1979-09-17	ELECTROMAGNETIC GROOVE GRADE ELEMENT.
CH546584A (en)	1974-03-15	SKIBOB.
DK131830B (en)	1975-09-08	Gaslighter.
DK130656B (en)	1975-03-17	Falstagsten.
ES156991Y (en)	1971-08-01	GIRDLE-PANTS.
ES156687Y (en)	1971-06-16	BOX-CASE.
ES160016Y (en)	1971-05-16	LAMP-CLOCK.
BE756275A (en)	1971-03-01	BIGOUDI.
CH549227A (en)	1974-05-15	PHOTOCOPYER.
NL7804499A (en)	1978-08-31	ELECTROMAGNETIC GROOVE GRADE ELEMENT.
ES159766Y (en)	1971-04-16	CASE.
ES156909Y (en)	1971-02-01	PROFILE.
ES159676Y (en)	1971-09-16	POSTCARD-FOSFOROS PORTFOLIO.
ES160452Y (en)	1971-06-01	CURB-CUNET.
ES156547Y (en)	1971-02-01	GARLAND-HOLDER.
ES163088Y (en)	1971-07-16	PACKAGING-PENDANT.
ES163406Y (en)	1971-09-01	FRIEGASUELOS.
ES160006Y (en)	1971-05-16	TOY-SURPRISE.
ES159741Y (en)	1971-03-16	ARMS-HOLDER.
ES159574Y (en)	1971-03-16	GUNITADORA.
ES159191Y (en)	1971-09-01	SPOON-SELECTOR.

Legal Events

Date	Code	Title	Description
1987-02-02	V1	Lapsed because of non-payment of the annual fee
1987-02-16	V1	Lapsed because of non-payment of the annual fee
1991-06-24	NL80	Abbreviated name of patent owner mentioned of already nullified patent	Owner name: GRADO