BE379048A - - Google Patents

Info

Publication number: BE379048A
Authority: BE; Belgium

Application number

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.)

1930-05-10

Publication of BE379048A publication Critical patent/BE379048A/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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Diaphragms For Electromechanical Transducers (AREA)

BE379048D 1930-05-10 BE379048A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL387309X		1930-05-10

Publications (1)

Publication Number	Publication Date
BE379048A true BE379048A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Family

ID=19785725

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE379048D BE379048A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)	1930-05-10

Country Status (3)

Country	Link
BE (1)	BE379048A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
FR (1)	FR715482A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
GB (1)	GB387309A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

0
- BE BE379048D patent/BE379048A/xx unknown
1931
- 1931-04-15 FR FR715482D patent/FR715482A/fr not_active Expired
- 1931-04-27 GB GB12421/31A patent/GB387309A/en not_active Expired

Also Published As

Publication number	Publication date
GB387309A (en)	1933-02-02
FR715482A (fr)	1931-12-03

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