NL12262C - - Google Patents
Info
- Publication number
- NL12262C NL12262C NL21892A NL21892A NL12262C NL 12262 C NL12262 C NL 12262C NL 21892 A NL21892 A NL 21892A NL 21892 A NL21892 A NL 21892A NL 12262 C NL12262 C NL 12262C
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
-
- 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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR558037T | 1922-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL12262C true NL12262C (en) | 1924-12-15 |
Family
ID=31898014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL21892A NL12262C (en) | 1922-02-17 | 1922-04-20 |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US1523262A (en) |
| DE (2) | DE394012C (en) |
| FR (2) | FR558037A (en) |
| GB (2) | GB193339A (en) |
| NL (1) | NL12262C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3141071A (en) * | 1960-07-18 | 1964-07-14 | Rosen Alfred H | Full range electroacoustic transducers |
| GB1563511A (en) * | 1976-03-19 | 1980-03-26 | Harwood H | Diaphragms for electroacoustic transducers |
| NL8102572A (en) * | 1981-05-26 | 1982-12-16 | Philips Nv | BAND TYPE ELECTROACOUSTIC CONVERTER WITH LOW DISTORTION AND IMPROVED SENSITIVITY. |
-
1922
- 1922-02-17 FR FR558037D patent/FR558037A/en not_active Expired
- 1922-04-12 US US551802A patent/US1523262A/en not_active Expired - Lifetime
- 1922-04-14 DE DES59483D patent/DE394012C/en not_active Expired
- 1922-04-20 NL NL21892A patent/NL12262C/xx active
- 1922-06-30 GB GB18048/22A patent/GB193339A/en not_active Expired
- 1922-07-05 FR FR26807D patent/FR26807E/en not_active Expired
-
1923
- 1923-06-05 GB GB14761/23A patent/GB200490A/en not_active Expired
- 1923-06-07 DE DES63041D patent/DE403728C/en not_active Expired
- 1923-06-12 US US644985A patent/US1538319A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR558037A (en) | 1923-08-20 |
| US1538319A (en) | 1925-05-19 |
| DE403728C (en) | 1924-10-08 |
| FR26807E (en) | 1924-03-15 |
| DE394012C (en) | 1924-04-11 |
| US1523262A (en) | 1925-01-13 |
| GB193339A (en) | 1923-02-22 |
| GB200490A (en) | 1924-07-10 |