BE475383A - - Google Patents

Info

Publication number: BE475383A
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.)

1945-12-11

Publication of BE475383A publication Critical patent/BE475383A/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
- H04R9/08—Microphones
- 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
- H04R9/06—Loudspeakers

Landscapes

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

BE475383D 1945-12-11 BE475383A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB264765X		1945-12-11

Publications (1)

Publication Number	Publication Date
BE475383A true BE475383A (enrdf_load_stackoverflow)

Family

ID=10244249

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE475383D BE475383A (enrdf_load_stackoverflow)	1945-12-11

Country Status (4)

Country	Link
BE (1)	BE475383A (enrdf_load_stackoverflow)
CH (1)	CH264765A (enrdf_load_stackoverflow)
ES (1)	ES177012A1 (enrdf_load_stackoverflow)
GB (1)	GB626453A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1121117B (de) *	1957-09-18	1962-01-04	Holmberg & Co	Kleinlautsprecher mit bestimmtem Frequenzgang

0
- BE BE475383D patent/BE475383A/xx unknown
1945
- 1945-12-11 GB GB33459/45A patent/GB626453A/en not_active Expired
1946
- 1946-12-11 CH CH264765D patent/CH264765A/de unknown
1947
- 1947-02-28 ES ES177012A patent/ES177012A1/es not_active Expired

Also Published As

Publication number	Publication date
CH264765A (de)	1949-10-31
ES177012A1 (es)	1947-04-16
GB626453A (en)	1949-07-15

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