BE483710A - - Google Patents
Info
- Publication number
- BE483710A BE483710A BE483710DA BE483710A BE 483710 A BE483710 A BE 483710A BE 483710D A BE483710D A BE 483710DA BE 483710 A BE483710 A BE 483710A
- 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
-
- 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
-
- 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
- H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US661168XA | 1946-08-31 | 1946-08-31 | |
| US286656XA | 1947-09-09 | 1947-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE483710A true BE483710A (fr) |
Family
ID=26703957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE483710D BE483710A (fr) | 1946-08-31 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE483710A (fr) |
| CH (1) | CH286656A (fr) |
| FR (1) | FR969232A (fr) |
| GB (2) | GB661168A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2752428A (en) * | 1951-05-03 | 1956-06-26 | Shure Bros | Phonograph translating device |
| NL112654C (fr) * | 1958-04-03 | |||
| US3233047A (en) * | 1961-10-02 | 1966-02-01 | Teleprompter Corp | Stereo piezoelectric transducer |
-
0
- BE BE483710D patent/BE483710A/xx unknown
-
1947
- 1947-08-18 GB GB22874/47A patent/GB661168A/en not_active Expired
-
1948
- 1948-06-29 CH CH286656D patent/CH286656A/fr unknown
- 1948-07-16 FR FR969232D patent/FR969232A/fr not_active Expired
- 1948-08-24 GB GB22282/48A patent/GB672236A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB661168A (en) | 1951-11-21 |
| GB672236A (en) | 1952-05-21 |
| CH286656A (fr) | 1952-10-31 |
| FR969232A (fr) | 1950-12-15 |