BE374410A - - Google Patents
Info
- Publication number
- BE374410A BE374410A BE374410DA BE374410A BE 374410 A BE374410 A BE 374410A BE 374410D A BE374410D A BE 374410DA BE 374410 A BE374410 A BE 374410A
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Moving Of Heads (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US402128A US1981793A (en) | 1929-10-24 | 1929-10-24 | Sound reproducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE374410A true BE374410A (en) |
Family
ID=23590646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE374410D BE374410A (en) | 1929-10-24 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1981793A (en) |
| BE (1) | BE374410A (en) |
| DE (1) | DE599965C (en) |
| FR (1) | FR704651A (en) |
| GB (1) | GB363449A (en) |
| NL (1) | NL33960C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2640888A (en) * | 1949-11-07 | 1953-06-02 | Edward E Combs | Phonograph pickup |
-
0
- BE BE374410D patent/BE374410A/xx unknown
- NL NL33960D patent/NL33960C/xx active
-
1929
- 1929-10-24 US US402128A patent/US1981793A/en not_active Expired - Lifetime
-
1930
- 1930-10-16 GB GB30996/30A patent/GB363449A/en not_active Expired
- 1930-10-20 FR FR704651D patent/FR704651A/en not_active Expired
- 1930-10-21 DE DE1930599965D patent/DE599965C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR704651A (en) | 1931-05-23 |
| US1981793A (en) | 1934-11-20 |
| GB363449A (en) | 1931-12-24 |
| DE599965C (en) | 1934-07-12 |
| NL33960C (en) |