FR928462A - Loud speaker - Google Patents
Loud speakerInfo
- Publication number
- FR928462A FR928462A FR928462DA FR928462A FR 928462 A FR928462 A FR 928462A FR 928462D A FR928462D A FR 928462DA FR 928462 A FR928462 A FR 928462A
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR928462T | 1946-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR928462A true FR928462A (en) | 1947-11-28 |
Family
ID=9441818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR928462D Expired FR928462A (en) | 1946-05-28 | 1946-05-28 | Loud speaker |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR928462A (en) |
-
1946
- 1946-05-28 FR FR928462D patent/FR928462A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR971128A (en) | Loudspeaker enhancements | |
FR985357A (en) | Loud speaker | |
FR946579A (en) | Electro-acoustic translators | |
FR934810A (en) | Sound reproduction devices | |
FR942640A (en) | Phonographic recordings | |
FR1001682A (en) | Doorbell | |
FI23495A (en) | Sätt att förstärka ihåliga sällträn | |
FR936121A (en) | Loudspeaker enhancements | |
FR929623A (en) | Microphone arrangement | |
FR928462A (en) | Loud speaker | |
FR1005386A (en) | Sound distribution speaker | |
FR920048A (en) | Space-saving loudspeaker | |
FR925469A (en) | Loudspeaker enhancements | |
DK70808C (en) | Electrodynamic microphone. | |
FR939636A (en) | Loudspeaker enhancements | |
FR946542A (en) | Electro-acoustic converters | |
FR920046A (en) | Loudspeaker enhancements | |
FR929694A (en) | Loudspeaker enhancements | |
FR929558A (en) | Sound cinema wagon | |
FR937420A (en) | Uni-directional electromagnetic microphone | |
FI25848A (en) | Sheet music | |
CA434947A (en) | Loud speaker | |
DK81236C (en) | Speaker unit. | |
FR1011097A (en) | Loud speaker | |
FR948887A (en) | Acoustic corrector |