NL7405042A - ROUNDLYING SPEAKER BOX. - Google Patents

ROUNDLYING SPEAKER BOX.

Info

Publication number: NL7405042A
Authority: NL; Netherlands
Prior art keywords: roundlying; speaker box; speaker; box; roundlying speaker
Prior art date: 1973-08-30

Application number

NL7405042A

Other languages

Dutch (nl)

Original Assignee

Wigo Widmann Soehne Gottlob

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.)

1973-08-30

Filing date

1974-04-11

Publication date

1975-03-04

1974-04-11 Application filed by Wigo Widmann Soehne Gottlob filed Critical Wigo Widmann Soehne Gottlob

1975-03-04 Publication of NL7405042A publication Critical patent/NL7405042A/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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Golf Clubs (AREA)
Details Of Audible-Bandwidth Transducers (AREA)

NL7405042A 1973-08-30 1974-04-11 ROUNDLYING SPEAKER BOX. NL7405042A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE7331468		1973-08-30

Publications (1)

Publication Number	Publication Date
NL7405042A true NL7405042A (en)	1975-03-04

Family

ID=6640354

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7405042A NL7405042A (en)	1973-08-30	1974-04-11	ROUNDLYING SPEAKER BOX.

Country Status (14)

Country	Link
JP (1)	JPS5437296Y2 (en)
AT (1)	AT334436B (en)
BE (1)	BE812893A (en)
CH (1)	CH564296A5 (en)
DK (1)	DK196574A (en)
ES (1)	ES426700A1 (en)
FI (1)	FI85774A (en)
FR (1)	FR2242830B3 (en)
GB (1)	GB1451169A (en)
IT (1)	IT1020578B (en)
LU (1)	LU69645A1 (en)
NL (1)	NL7405042A (en)
NO (1)	NO138010C (en)
SE (1)	SE393508B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4836329A (en) *	1987-07-21	1989-06-06	Hughes Aircraft Company	Loudspeaker system with wide dispersion baffle
GB2212694A (en) *	1987-11-21	1989-07-26	Robert Alfred Webb	Speaker
FR2637147B1 (en) *	1988-09-29	1990-12-28	Mutek Sarl	OMNIDIRECTIONAL ELECTROACOUSTIC SPEAKER
GB2305062B (en) *	1995-09-06	2000-03-22	Thomas Davies Richard John	Double accoustic deflector
US5784468A (en) *	1996-10-07	1998-07-21	Srs Labs, Inc.	Spatial enhancement speaker systems and methods for spatially enhanced sound reproduction

1974
- 1974-03-12 CH CH345474A patent/CH564296A5/xx not_active IP Right Cessation
- 1974-03-15 AT AT215974A patent/AT334436B/en not_active IP Right Cessation
- 1974-03-15 LU LU69645A patent/LU69645A1/xx unknown
- 1974-03-15 NO NO740917A patent/NO138010C/en unknown
- 1974-03-21 FI FI857/M7A patent/FI85774A/fi unknown
- 1974-03-21 SE SE7403817A patent/SE393508B/en unknown
- 1974-03-22 FR FR7409917A patent/FR2242830B3/fr not_active Expired
- 1974-03-27 BE BE142499A patent/BE812893A/en unknown
- 1974-04-08 GB GB1537674A patent/GB1451169A/en not_active Expired
- 1974-04-09 DK DK196574A patent/DK196574A/da not_active Application Discontinuation
- 1974-04-11 NL NL7405042A patent/NL7405042A/en unknown
- 1974-04-12 IT IT68180/74A patent/IT1020578B/en active
- 1974-04-13 JP JP1974042206U patent/JPS5437296Y2/ja not_active Expired
- 1974-05-27 ES ES426700A patent/ES426700A1/en not_active Expired

Also Published As

Publication number	Publication date
BE812893A (en)	1974-07-15
ES426700A1 (en)	1976-08-01
ATA215974A (en)	1976-05-15
FR2242830A1 (en)	1975-03-28
NO138010B (en)	1978-02-27
FR2242830B3 (en)	1977-01-07
JPS5437296Y2 (en)	1979-11-09
NO138010C (en)	1978-06-21
CH564296A5 (en)	1975-07-15
IT1020578B (en)	1977-12-30
NO740917L (en)	1975-03-24
SE7403817L (en)	1975-03-03
JPS50117817U (en)	1975-09-26
GB1451169A (en)	1976-09-29
SE393508B (en)	1977-05-09
FI85774A (en)	1975-03-01
LU69645A1 (en)	1974-07-10
DK196574A (en)	1975-04-21
AT334436B (en)	1976-01-10

Publication	Publication Date	Title
SE400012B (en)	1978-03-06	SPEAKERS
NL7600278A (en)	1977-07-15	SPRAY BOX.
NL7414096A (en)	1975-05-09	MORE DETAILS.
IT1040007B (en)	1979-12-20	SPEAKER BOX HI.FI
SU532335A3 (en)	1976-10-15	Laminated box
DK138570B (en)	1978-09-25	Speaker device.
NO142744C (en)	1980-10-08	EXHIBITION BOX.
DK150058C (en)	1987-05-11	speaker
AT332919B (en)	1976-10-25	SPEAKER
DK138569B (en)	1978-09-25	Speaker device.
AT321388B (en)	1975-03-25	headphone
DK139510B (en)	1979-03-05	Foldable box.
IT1003592B (en)	1976-06-10	MICROPHONE
NL7410394A (en)	1975-02-11	AMPLIFIER.
AT325125B (en)	1975-10-10	HEADPHONE
NL7409507A (en)	1975-01-22	AMPLIFIER.
NO140846C (en)	1979-11-21	HOW SPEAKERS.
NL7409511A (en)	1975-01-15	WRAP - FOLDING BOX.
NL7405042A (en)	1975-03-04	ROUNDLYING SPEAKER BOX.
NL7403557A (en)	1975-01-07	FORMING.
ATA1022673A (en)	1975-01-15	HEADPHONE
NL7410724A (en)	1975-02-18	FORMING.
CH550694A (en)	1974-06-28	FOLDING BOX.
NO140038C (en)	1979-06-27	EMERGENCY PHONE BOX.
NL165591C (en)	1981-04-15	CARDBOARD.