FR804657A - - Google Patents
Info
- Publication number
- FR804657A FR804657A FR804657DA FR804657A FR 804657 A FR804657 A FR 804657A FR 804657D A FR804657D A FR 804657DA FR 804657 A FR804657 A FR 804657A
- 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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE475492X | 1935-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR804657A true FR804657A (zh) | 1936-10-29 |
Family
ID=6541861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR804657D Expired FR804657A (zh) | 1935-04-12 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR804657A (zh) |
| GB (1) | GB475492A (zh) |
-
0
- FR FR804657D patent/FR804657A/fr not_active Expired
-
1936
- 1936-04-14 GB GB10720/36A patent/GB475492A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB475492A (en) | 1937-11-15 |