FR632576A - - Google Patents
Info
- Publication number
- FR632576A FR632576A FR632576DA FR632576A FR 632576 A FR632576 A FR 632576A FR 632576D A FR632576D A FR 632576DA FR 632576 A FR632576 A FR 632576A
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR632576A true FR632576A (en) | 1928-01-11 |
Family
ID=1541660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR632576D Expired FR632576A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR632576A (en) |
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0
- FR FR632576D patent/FR632576A/fr not_active Expired