FR744409A - - Google Patents
Info
- Publication number
- FR744409A FR744409A FR744409DA FR744409A FR 744409 A FR744409 A FR 744409A FR 744409D A FR744409D A FR 744409DA FR 744409 A FR744409 A FR 744409A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3285732A GB392096A (en) | 1932-11-21 | 1932-11-21 | Improvements in or relating to permanent magnets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR744409A true FR744409A (enrdf_load_stackoverflow) | 1933-04-20 |
Family
ID=10345045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR744409D Expired FR744409A (enrdf_load_stackoverflow) | 1932-11-21 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR744409A (enrdf_load_stackoverflow) |
| GB (1) | GB392096A (enrdf_load_stackoverflow) |
-
0
- FR FR744409D patent/FR744409A/fr not_active Expired
-
1932
- 1932-11-21 GB GB3285732A patent/GB392096A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB392096A (en) | 1933-05-11 |