BE504207A - - Google Patents
Info
- Publication number
- BE504207A BE504207A BE504207DA BE504207A BE 504207 A BE504207 A BE 504207A BE 504207D A BE504207D A BE 504207DA BE 504207 A BE504207 A BE 504207A
- 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
- H04R17/06—Gramophone pick-ups using a stylus; Recorders using a stylus comprising two or more styli or transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1022443T | 1950-07-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE504207A true BE504207A (fr) |
Family
ID=9577627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE504207D BE504207A (fr) | 1950-07-24 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE504207A (fr) |
CH (1) | CH294052A (fr) |
FR (1) | FR1022443A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2977124A (en) * | 1955-01-04 | 1961-03-28 | Staar Marcel Jules Helene | Phonograph apparatus |
-
0
- BE BE504207D patent/BE504207A/xx unknown
-
1950
- 1950-07-24 FR FR1022443D patent/FR1022443A/fr not_active Expired
-
1951
- 1951-06-23 CH CH294052D patent/CH294052A/fr unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2977124A (en) * | 1955-01-04 | 1961-03-28 | Staar Marcel Jules Helene | Phonograph apparatus |
Also Published As
Publication number | Publication date |
---|---|
FR1022443A (fr) | 1953-03-04 |
CH294052A (fr) | 1953-10-31 |