BE413126A - - Google Patents
Info
- Publication number
- BE413126A BE413126A BE413126DA BE413126A BE 413126 A BE413126 A BE 413126A BE 413126D A BE413126D A BE 413126DA BE 413126 A BE413126 A BE 413126A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB801693X | 1935-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE413126A true BE413126A (https=) |
Family
ID=10513601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE413126D BE413126A (https=) | 1935-02-07 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE413126A (https=) |
| FR (1) | FR801693A (https=) |
-
0
- BE BE413126D patent/BE413126A/xx unknown
-
1936
- 1936-02-03 FR FR801693D patent/FR801693A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR801693A (fr) | 1936-08-13 |