BE480688A - - Google Patents
Info
- Publication number
- BE480688A BE480688A BE480688DA BE480688A BE 480688 A BE480688 A BE 480688A BE 480688D A BE480688D A BE 480688DA BE 480688 A BE480688 A BE 480688A
- 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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Impact Printers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2087/45A GB608036A (en) | 1944-11-09 | 1945-01-26 | Improvements in or relating to sound reproducer or recorder heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE480688A true BE480688A (da) |
Family
ID=9733353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE480688D BE480688A (da) | 1945-01-26 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2498671A (da) |
| BE (1) | BE480688A (da) |
| ES (1) | ES178082A2 (da) |
| FR (1) | FR931028A (da) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB188029A (en) * | 1921-07-23 | 1922-10-23 | Thomas Henry Cole | Improvements in gramophones and the like |
| DE607566C (de) * | 1930-09-12 | 1935-01-02 | Columbia Graphophone Co Ltd | Tonaufzeichner fuer Schallplatten |
| US2037255A (en) * | 1931-03-21 | 1936-04-14 | United Res Corp | Electromagnetic translating device |
| US1968149A (en) * | 1931-08-17 | 1934-07-31 | Capehart Corp | Phonograph pick-up mechanism |
| NL43098C (da) * | 1934-05-17 | |||
| US2141584A (en) * | 1936-02-22 | 1938-12-27 | Wittander Samuel | Sound reproducing and recording apparatus |
| US2412718A (en) * | 1943-08-07 | 1946-12-17 | Webster Electric Co Inc | Recorder |
-
0
- BE BE480688D patent/BE480688A/xx unknown
-
1946
- 1946-01-05 US US639273A patent/US2498671A/en not_active Expired - Lifetime
- 1946-06-12 FR FR931028D patent/FR931028A/fr not_active Expired
-
1947
- 1947-05-17 ES ES0178082A patent/ES178082A2/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR931028A (fr) | 1948-02-11 |
| ES178082A2 (es) | 1947-07-01 |
| US2498671A (en) | 1950-02-28 |