BE333008A - - Google Patents
Info
- Publication number
- BE333008A BE333008A BE333008DA BE333008A BE 333008 A BE333008 A BE 333008A BE 333008D A BE333008D A BE 333008DA BE 333008 A BE333008 A BE 333008A
- 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
- H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB613355X | 1925-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE333008A true BE333008A (en:Method) |
Family
ID=10486879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE333008D BE333008A (en:Method) | 1925-04-21 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE333008A (en:Method) |
| FR (1) | FR613355A (en:Method) |
-
0
- BE BE333008D patent/BE333008A/xx unknown
-
1926
- 1926-03-24 FR FR613355D patent/FR613355A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR613355A (fr) | 1926-11-16 |