BE456980A - - Google Patents
Info
- Publication number
- BE456980A BE456980A BE456980DA BE456980A BE 456980 A BE456980 A BE 456980A BE 456980D A BE456980D A BE 456980DA BE 456980 A BE456980 A BE 456980A
- 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
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE245845X | 1943-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE456980A true BE456980A (en:Method) |
Family
ID=5933078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE456980D BE456980A (en:Method) | 1943-07-30 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE456980A (en:Method) |
| CH (1) | CH245845A (en:Method) |
-
0
- BE BE456980D patent/BE456980A/xx unknown
-
1944
- 1944-07-31 CH CH245845D patent/CH245845A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH245845A (de) | 1946-11-30 |