FR678652A - Electromagnetic sound reproducer - Google Patents
Electromagnetic sound reproducerInfo
- Publication number
- FR678652A FR678652A FR678652DA FR678652A FR 678652 A FR678652 A FR 678652A FR 678652D A FR678652D A FR 678652DA FR 678652 A FR678652 A FR 678652A
- Authority
- FR
- France
- Prior art keywords
- sound reproducer
- electromagnetic sound
- electromagnetic
- reproducer
- sound
- Prior art date
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR678652T | 1929-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR678652A true FR678652A (en) | 1930-04-03 |
Family
ID=9021174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR678652D Expired FR678652A (en) | 1929-07-10 | 1929-07-10 | Electromagnetic sound reproducer |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE362580A (en) |
FR (1) | FR678652A (en) |
-
0
- BE BE362580D patent/BE362580A/xx unknown
-
1929
- 1929-07-10 FR FR678652D patent/FR678652A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE362580A (en) |
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