NL23822C - - Google Patents
Info
- Publication number
- NL23822C NL23822C NL23822DA NL23822C NL 23822 C NL23822 C NL 23822C NL 23822D A NL23822D A NL 23822DA NL 23822 C NL23822 C NL 23822C
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- 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
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/041—Centering
-
- 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
- H04R9/06—Loudspeakers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US161824A US1637119A (en) | 1927-01-18 | 1927-01-18 | Electromagnetic sound reproducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL23822C true NL23822C (en:Method) |
Family
ID=22582902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL23822D NL23822C (en:Method) | 1927-01-18 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US1637119A (en:Method) |
| BE (1) | BE348263A (en:Method) |
| DE (1) | DE517895C (en:Method) |
| FR (1) | FR647892A (en:Method) |
| GB (1) | GB276900A (en:Method) |
| NL (1) | NL23822C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527702A (en) * | 1978-08-18 | 1980-02-28 | Sony Corp | Vibrator for speaker |
-
0
- US US17086D patent/USRE17086E/en not_active Expired
- NL NL23822D patent/NL23822C/xx active
- BE BE348263D patent/BE348263A/xx unknown
-
1927
- 1927-01-18 US US161824A patent/US1637119A/en not_active Expired - Lifetime
- 1927-03-22 GB GB7917/27A patent/GB276900A/en not_active Expired
-
1928
- 1928-01-17 FR FR647892D patent/FR647892A/fr not_active Expired
- 1928-01-18 DE DEF65179D patent/DE517895C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1637119A (en) | 1927-07-26 |
| DE517895C (de) | 1931-02-07 |
| FR647892A (fr) | 1928-12-03 |
| BE348263A (en:Method) | |
| GB276900A (en) | 1927-09-08 |
| USRE17086E (en) | 1928-09-18 |