FR43928E - Perfectionnements aux haut-parleurs - Google Patents
Perfectionnements aux haut-parleursInfo
- Publication number
- FR43928E FR43928E FR43928DA FR43928E FR 43928 E FR43928 E FR 43928E FR 43928D A FR43928D A FR 43928DA FR 43928 E FR43928 E FR 43928E
- Authority
- FR
- France
- Prior art keywords
- enhancements
- loudspeaker
- loudspeaker enhancements
- 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
- 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
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR43928T | 1933-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR43928E true FR43928E (fr) | 1934-09-19 |
Family
ID=8679844
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR750045D Expired FR750045A (fr) | 1933-05-16 | 1932-04-23 | Perfectionnements aux haut-parleurs |
FR42803D Expired FR42803E (fr) | 1933-05-16 | 1932-06-06 | Perfectionnements aux haut-parleurs |
FR43928D Expired FR43928E (fr) | 1933-05-16 | 1933-05-16 | Perfectionnements aux haut-parleurs |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR750045D Expired FR750045A (fr) | 1933-05-16 | 1932-04-23 | Perfectionnements aux haut-parleurs |
FR42803D Expired FR42803E (fr) | 1933-05-16 | 1932-06-06 | Perfectionnements aux haut-parleurs |
Country Status (1)
Country | Link |
---|---|
FR (3) | FR750045A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4235302A (en) * | 1977-03-15 | 1980-11-25 | Kenkichi Tsukamoto | Loudspeaker |
US4239090A (en) * | 1979-03-29 | 1980-12-16 | Dahlquist Jon G | High accuracy bass reproducer device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3236958A (en) * | 1961-04-25 | 1966-02-22 | Electronic Res Associates Inc | Loudspeaker system |
US4590333A (en) * | 1984-06-14 | 1986-05-20 | John Strohbeen | Multidriver loudspeaker |
-
1932
- 1932-04-23 FR FR750045D patent/FR750045A/fr not_active Expired
- 1932-06-06 FR FR42803D patent/FR42803E/fr not_active Expired
-
1933
- 1933-05-16 FR FR43928D patent/FR43928E/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4235302A (en) * | 1977-03-15 | 1980-11-25 | Kenkichi Tsukamoto | Loudspeaker |
US4239090A (en) * | 1979-03-29 | 1980-12-16 | Dahlquist Jon G | High accuracy bass reproducer device |
Also Published As
Publication number | Publication date |
---|---|
FR42803E (fr) | 1933-11-04 |
FR750045A (fr) | 1933-08-03 |
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