BE345853A - - Google Patents
Info
- Publication number
- BE345853A BE345853A BE345853DA BE345853A BE 345853 A BE345853 A BE 345853A BE 345853D A BE345853D A BE 345853DA BE 345853 A BE345853 A BE 345853A
- 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24425/26A GB282906A (en) | 1926-10-02 | 1926-10-02 | Improvements in or relating to means for recording or reproducing sound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE345853A true BE345853A (en) |
Family
ID=10211533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE345853D BE345853A (en) | 1926-10-02 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1737253A (en) |
| BE (1) | BE345853A (en) |
| FR (1) | FR641562A (en) |
| GB (1) | GB282906A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2564136A (en) * | 1943-03-04 | 1951-08-14 | Hartford Nat Bank & Trust Co | Corundum crystal recording or reproducing member |
| US2577149A (en) * | 1947-07-18 | 1951-12-04 | Union Carbide & Carbon Corp | Corundum phonograph needle and sound reproducing apparatus embodying same |
| US2564054A (en) * | 1947-10-10 | 1951-08-14 | Magnavox Co | Phonograph pickup and mechanical motion converting system therefor |
| US3409904A (en) * | 1966-12-20 | 1968-11-05 | Motorola Inc | Printer having piezoelectric crystal printing means |
| DE1574489B2 (en) * | 1968-02-13 | 1971-07-01 | lelefunken Patentverwertungsgesell schaft mbH, 7900 Ulm, Teldec Telefunken Decca Schallplatten GmbH, 2000 Hamburg | MEMORY AND PLAYBACK ARRANGEMENT AND SCANNER FOR THIS PLAYBACK ARRANGEMENT |
| CH554578A (en) * | 1971-06-12 | 1974-09-30 | Benz Ernst | CARTRIDGE NEEDLE. |
| US3805100A (en) * | 1972-01-22 | 1974-04-16 | Ted Bildplatten | Piezoelectric record cutting stylus |
| JPS6196423A (en) * | 1984-10-17 | 1986-05-15 | Fuji Photo Film Co Ltd | Vibration measuring head |
-
0
- BE BE345853D patent/BE345853A/xx unknown
-
1926
- 1926-10-02 GB GB24425/26A patent/GB282906A/en not_active Expired
-
1927
- 1927-09-08 FR FR641562D patent/FR641562A/en not_active Expired
- 1927-09-28 US US222543A patent/US1737253A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB282906A (en) | 1928-01-02 |
| FR641562A (en) | 1928-08-07 |
| US1737253A (en) | 1929-11-26 |