NL73443C - - Google Patents
Info
- Publication number
- NL73443C NL73443C NL73443DA NL73443C NL 73443 C NL73443 C NL 73443C NL 73443D A NL73443D A NL 73443DA NL 73443 C NL73443 C NL 73443C
- 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
- H04R9/045—Mounting
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR987123T | 1949-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL73443C true NL73443C (es) |
Family
ID=9538692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL73443D NL73443C (es) | 1949-03-31 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2657758A (es) |
| FR (1) | FR987123A (es) |
| NL (1) | NL73443C (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL90604C (es) * | 1951-12-05 | |||
| US2815823A (en) * | 1953-03-02 | 1957-12-10 | Rca Corp | Loudspeaker structure |
| US3180945A (en) * | 1961-09-22 | 1965-04-27 | Wm H Welsh Co Inc | Loudspeaker |
| JP3874467B2 (ja) * | 1996-09-27 | 2007-01-31 | 松下電器産業株式会社 | 銅箔糸線用ワックスとそれを用いたスピーカ用銅箔糸線およびスピーカ |
| US6929091B2 (en) * | 2002-10-28 | 2005-08-16 | Sound Advance Systems, Inc. | Planar diaphragm loudspeaker and related methods |
| ATE394894T1 (de) * | 2003-08-19 | 2008-05-15 | Matsushita Electric Ind Co Ltd | Lautsprecher |
| US9628917B2 (en) | 2014-07-23 | 2017-04-18 | Bose Corporation | Sound producing system |
| US9913042B2 (en) | 2016-06-14 | 2018-03-06 | Bose Corporation | Miniature device having an acoustic diaphragm |
| US10499159B2 (en) * | 2017-05-17 | 2019-12-03 | Bose Corporation | Method of fabricating a miniature device having an acoustic diaphragm |
| US10448183B2 (en) | 2017-07-27 | 2019-10-15 | Bose Corporation | Method of fabricating a miniature device having an acoustic diaphragm |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US804903A (en) * | 1905-05-25 | 1905-11-21 | John H Van Mater | Acoustic diaphragm. |
| US1040294A (en) * | 1911-10-11 | 1912-10-08 | James H Ellis | Diaphragm. |
| US1624357A (en) * | 1923-06-15 | 1927-04-12 | Western Electric Co | Phonic diaphragm |
| US1846937A (en) * | 1930-05-09 | 1932-02-23 | Gen Electric | Diaphragm for loud speakers |
| US1722805A (en) * | 1926-07-31 | 1929-07-30 | Bell Telephone Labor Inc | Sound radiator |
| US1825833A (en) * | 1929-06-21 | 1931-10-06 | Tennesse Hans | Acoustic diaphragm |
| US1941476A (en) * | 1930-06-27 | 1934-01-02 | Jensen Radio Mfg Company | Method of making sound reproducers |
| FR738415A (fr) * | 1931-10-02 | 1932-12-26 | Diaphragme vibrant pour appareils sonores | |
| US1956826A (en) * | 1932-06-16 | 1934-05-01 | Rola Company | Method of making alpha voice coil |
| US2030501A (en) * | 1934-01-31 | 1936-02-11 | Rca Corp | Loudspeaker cone diaphragm and method of producing same |
| US2288832A (en) * | 1937-08-31 | 1942-07-07 | Rca Corp | Fibrous acoustic diaphragm |
| US2531634A (en) * | 1945-01-11 | 1950-11-28 | Athol E N Lawrance | Acoustical diaphragm with stiffening means |
| US2512323A (en) * | 1946-09-09 | 1950-06-20 | Radio Frequency Lab Inc | Reentrant diaphragm with central closure member |
-
0
- NL NL73443D patent/NL73443C/xx active
-
1949
- 1949-03-31 FR FR987123D patent/FR987123A/fr not_active Expired
-
1950
- 1950-03-24 US US151724A patent/US2657758A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2657758A (en) | 1953-11-03 |
| FR987123A (fr) | 1951-08-09 |