FR1548519A - - Google Patents
Info
- Publication number
- FR1548519A FR1548519A FR1548519DA FR1548519A FR 1548519 A FR1548519 A FR 1548519A FR 1548519D A FR1548519D A FR 1548519DA FR 1548519 A FR1548519 A FR 1548519A
- Authority
- FR
- France
- 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
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- 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
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR125469 | 1967-10-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1548519A true FR1548519A (de) | 1968-12-06 |
Family
ID=8640540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1548519D Expired FR1548519A (de) | 1967-10-23 | 1967-10-23 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1548519A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428951A1 (fr) * | 1978-06-15 | 1980-01-11 | Sony Corp | Haut-parleur et procede de fabrication |
-
1967
- 1967-10-23 FR FR1548519D patent/FR1548519A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428951A1 (fr) * | 1978-06-15 | 1980-01-11 | Sony Corp | Haut-parleur et procede de fabrication |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |