NL6606482A - - Google Patents

Info

Publication number: NL6606482A
Authority: NL; Netherlands

Application number

NL6606482A

Other versions

NL142045B (nl

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.)

1965-11-12

Filing date

1966-05-12

Publication date

1967-05-16

1966-05-12 Application filed filed Critical

1967-05-16 Publication of NL6606482A publication Critical patent/NL6606482A/xx

1974-04-16 Publication of NL142045B publication Critical patent/NL142045B/xx

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

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

NL6606482A 1965-11-12 1966-05-12 Elektromagnetische doostelefoon of -microfoon. NL142045B (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US50733465A	1965-11-12	1965-11-12

Publications (2)

Publication Number	Publication Date
NL6606482A true NL6606482A (fr)	1967-05-16
NL142045B NL142045B (nl)	1974-04-16

Family

ID=24018229

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL6606482A NL142045B (nl)	1965-11-12	1966-05-12	Elektromagnetische doostelefoon of -microfoon.

Country Status (4)

Country	Link
CH (1)	CH448179A (fr)
DE (1)	DE1462163A1 (fr)
DK (1)	DK124100B (fr)
NL (1)	NL142045B (fr)

1965
- 1965-12-30 DE DE19651462163 patent/DE1462163A1/de not_active Withdrawn
1966
- 1966-03-16 CH CH378966A patent/CH448179A/de unknown
- 1966-05-12 NL NL6606482A patent/NL142045B/xx not_active IP Right Cessation
- 1966-07-19 DK DK374766A patent/DK124100B/da unknown

Also Published As

Publication number	Publication date
DK124100B (da)	1972-09-11
CH448179A (de)	1967-12-15
DE1462163B2 (fr)	1970-06-04
NL142045B (nl)	1974-04-16
DE1462163A1 (de)	1968-11-14

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Legal Events

Date	Code	Title	Description
1986-04-16	V1	Lapsed because of non-payment of the annual fee
1986-05-31	NL80	Abbreviated name of patent owner mentioned of already nullified patent	Owner name: IND RESEARCH