NL22500C - - Google Patents
Info
- Publication number
- NL22500C NL22500C NL22500DA NL22500C NL 22500 C NL22500 C NL 22500C NL 22500D A NL22500D A NL 22500DA NL 22500 C NL22500 C NL 22500C
- Authority
- NL
- Netherlands
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66624A US1709571A (en) | 1925-11-03 | 1925-11-03 | Electromechanical translating device |
| US111209A US1628666A (en) | 1926-05-24 | 1926-05-24 | Electromagnetic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL22500C true NL22500C (en:Method) |
Family
ID=26746972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL22500D NL22500C (en:Method) | 1925-11-03 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE335046A (en:Method) |
| FR (2) | FR620382A (en:Method) |
| GB (2) | GB260946A (en:Method) |
| NL (1) | NL22500C (en:Method) |
-
0
- NL NL22500D patent/NL22500C/xx active
- BE BE335046D patent/BE335046A/xx unknown
-
1926
- 1926-07-02 FR FR620382D patent/FR620382A/fr not_active Expired
- 1926-07-10 GB GB1732526A patent/GB260946A/en not_active Expired
-
1927
- 1927-01-11 FR FR32964D patent/FR32964E/fr not_active Expired
- 1927-02-09 GB GB366227A patent/GB271409A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR32964E (fr) | 1928-06-06 |
| GB260946A (en) | 1927-10-10 |
| GB271409A (en) | 1927-10-27 |
| BE335046A (en:Method) | |
| FR620382A (fr) | 1927-04-21 |