BE533537A - - Google Patents
Info
- Publication number
- BE533537A BE533537A BE533537DA BE533537A BE 533537 A BE533537 A BE 533537A BE 533537D A BE533537D A BE 533537DA BE 533537 A BE533537 A BE 533537A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1116479X | 1953-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE533537A true BE533537A (pl) |
Family
ID=7724132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE533537D BE533537A (pl) | 1953-11-25 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE533537A (pl) |
| FR (1) | FR1116479A (pl) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1040603B (de) * | 1957-06-18 | 1958-10-09 | Krone Kg | Leichte Sprechkapsel fuer Abfragegarnituren od. dgl. |
-
0
- BE BE533537D patent/BE533537A/xx unknown
-
1954
- 1954-11-03 FR FR1116479D patent/FR1116479A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1116479A (fr) | 1956-05-08 |