FR723893A - Haut-parleur - Google Patents
Haut-parleurInfo
- Publication number
- FR723893A FR723893A FR723893DA FR723893A FR 723893 A FR723893 A FR 723893A FR 723893D A FR723893D A FR 723893DA FR 723893 A FR723893 A FR 723893A
- Authority
- FR
- France
- Prior art keywords
- loud speaker
- loud
- speaker
- 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)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE378244X | 1931-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR723893A true FR723893A (fr) | 1932-04-16 |
Family
ID=6344516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR723893D Expired FR723893A (fr) | 1931-07-18 | 1931-10-06 | Haut-parleur |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE383016A (fr) |
FR (1) | FR723893A (fr) |
GB (1) | GB378244A (fr) |
-
0
- BE BE383016D patent/BE383016A/xx unknown
-
1931
- 1931-09-28 GB GB27025/31A patent/GB378244A/en not_active Expired
- 1931-10-06 FR FR723893D patent/FR723893A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB378244A (en) | 1932-08-11 |
BE383016A (fr) |
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