BE407715A - - Google Patents
Info
- Publication number
- BE407715A BE407715A BE407715DA BE407715A BE 407715 A BE407715 A BE 407715A BE 407715D A BE407715D A BE 407715DA BE 407715 A BE407715 A BE 407715A
- Authority
- BE
- Belgium
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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/041—Centering
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US631039A US1893049A (en) | 1932-08-30 | 1932-08-30 | Sound producing device |
Publications (1)
Publication Number | Publication Date |
---|---|
BE407715A true BE407715A (fr) |
Family
ID=24529528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE407715D BE407715A (fr) | 1932-08-30 |
Country Status (2)
Country | Link |
---|---|
US (1) | US1893049A (fr) |
BE (1) | BE407715A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2469773A (en) * | 1934-06-04 | 1949-05-10 | Jensen Mfg Company | Loud-speaker diaphragm support member |
US3247925A (en) * | 1962-03-08 | 1966-04-26 | Lord Corp | Loudspeaker |
US4926486A (en) * | 1987-07-17 | 1990-05-15 | Barsumian Bruce R | Transducer assembly for automatic message system |
KR19990044067A (ko) | 1995-09-02 | 1999-06-25 | 에이지마. 헨리 | 벤딩기계 |
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0
- BE BE407715D patent/BE407715A/xx unknown
-
1932
- 1932-08-30 US US631039A patent/US1893049A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US1893049A (en) | 1933-01-03 |