BE431283A - - Google Patents

Info

Publication number: BE431283A
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.)

1937-09-03

Publication of BE431283A publication Critical patent/BE431283A/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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/14—Throat mountings for microphones
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/021—Microphones with granular resistance material

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

BE431283D 1937-09-03 BE431283A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US162253A US2184064A (en)	1937-09-03	1937-09-03	Transmitter cell

Publications (1)

Publication Number	Publication Date
BE431283A true BE431283A (enrdf_load_html_response)

Family

ID=22584835

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE431283D BE431283A (enrdf_load_html_response)	1937-09-03

Country Status (2)

Country	Link
US (1)	US2184064A (enrdf_load_html_response)
BE (1)	BE431283A (enrdf_load_html_response)

0
- BE BE431283D patent/BE431283A/xx unknown
1937
- 1937-09-03 US US162253A patent/US2184064A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US2184064A (en)	1939-12-19

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