FR36429E - Perfectionnement aux haut-parleurs - Google Patents
Perfectionnement aux haut-parleursInfo
- Publication number
- FR36429E FR36429E FR36429DA FR36429E FR 36429 E FR36429 E FR 36429E FR 36429D A FR36429D A FR 36429DA FR 36429 E FR36429 E FR 36429E
- Authority
- FR
- France
- Prior art keywords
- speaker training
- speaker
- training
- 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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
- H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
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 |
---|---|---|---|
FR36429T | 1928-04-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR36429E true FR36429E (fr) | 1930-06-07 |
Family
ID=8673189
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR664330D Expired FR664330A (fr) | 1928-04-12 | 1928-02-29 | Perfectionnements aux hauts parleurs |
FR36429D Expired FR36429E (fr) | 1928-04-12 | 1928-04-12 | Perfectionnement aux haut-parleurs |
FR36028D Expired FR36028E (fr) | 1928-04-12 | 1928-04-12 | Perfectionnements aux hauts-parleurs |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR664330D Expired FR664330A (fr) | 1928-04-12 | 1928-02-29 | Perfectionnements aux hauts parleurs |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR36028D Expired FR36028E (fr) | 1928-04-12 | 1928-04-12 | Perfectionnements aux hauts-parleurs |
Country Status (1)
Country | Link |
---|---|
FR (3) | FR664330A (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2824990B1 (fr) * | 2001-05-15 | 2003-09-26 | Jean Pierre Morkerken | Emetteur de son et haut-parleur |
-
1928
- 1928-02-29 FR FR664330D patent/FR664330A/fr not_active Expired
- 1928-04-12 FR FR36429D patent/FR36429E/fr not_active Expired
- 1928-04-12 FR FR36028D patent/FR36028E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR36028E (fr) | 1930-04-01 |
FR664330A (fr) | 1929-09-02 |
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