BE416207A - - Google Patents
Info
- Publication number
- BE416207A BE416207A BE416207DA BE416207A BE 416207 A BE416207 A BE 416207A BE 416207D A BE416207D A BE 416207DA BE 416207 A BE416207 A BE 416207A
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR803678T | 1935-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE416207A true BE416207A (en:Method) |
Family
ID=9250280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE416207D BE416207A (en:Method) | 1935-06-26 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE416207A (en:Method) |
| FR (1) | FR803678A (en:Method) |
-
0
- BE BE416207D patent/BE416207A/xx unknown
-
1935
- 1935-06-26 FR FR803678D patent/FR803678A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR803678A (fr) | 1936-10-06 |