BE372585A - - Google Patents
Info
- Publication number
- BE372585A BE372585A BE372585DA BE372585A BE 372585 A BE372585 A BE 372585A BE 372585D A BE372585D A BE 372585DA BE 372585 A BE372585 A BE 372585A
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1907687X | 1929-09-03 | ||
| GB3079229A GB337173A (en) | 1929-10-10 | 1929-10-10 | Improvements in or relating to electro-dynamic devices for converting electric oscillations into acoustic vibrations or conversely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE372585A true BE372585A (pt) |
Family
ID=26260601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE372585D BE372585A (pt) | 1929-09-03 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1907687A (pt) |
| BE (1) | BE372585A (pt) |
| DE (1) | DE548070C (pt) |
| FR (1) | FR700634A (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB584354A (en) * | 1944-12-08 | 1947-01-13 | Harry Claude Willson | Improvements relating to electro-dynamic reproducers or loud-speaking telephones of the moving coil type |
| US2538621A (en) * | 1945-04-23 | 1951-01-16 | Bell Telephone Labor Inc | Electrodynamic transducer and connector therefor |
| US3014996A (en) * | 1956-05-18 | 1961-12-26 | Swanson Carl Axel | Speaker construction |
| US3014997A (en) * | 1957-03-06 | 1961-12-26 | Carl A Swanson | Speaker construction |
| DE1487375A1 (de) * | 1965-07-16 | 1969-02-20 | Philips Nv | Elektrodynamischer Wandler |
| DE2243427A1 (de) * | 1971-09-04 | 1973-04-12 | Pioneer Electronic Corp | Lautsprecher |
| US5008945A (en) * | 1988-05-23 | 1991-04-16 | Pioneer Electronic Corp. | Water-proof speaker unit |
| JP3022599B2 (ja) | 1994-03-29 | 2000-03-21 | ハーマン インターナショナル インダストリーズ，インコーポレイテッド | ラウドスピーカ用スパイダの製造方法 |
| JP3434408B2 (ja) * | 1996-05-28 | 2003-08-11 | 東北パイオニア株式会社 | スピーカ用ダンパ |
| CN201967124U (zh) * | 2011-01-07 | 2011-09-07 | 瑞声光电科技(常州)有限公司 | 电磁扬声器 |
-
0
- BE BE372585D patent/BE372585A/xx unknown
-
1930
- 1930-08-05 US US473265A patent/US1907687A/en not_active Expired - Lifetime
- 1930-08-12 DE DE1930548070D patent/DE548070C/de not_active Expired
- 1930-08-13 FR FR700634D patent/FR700634A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE548070C (de) | 1932-04-11 |
| US1907687A (en) | 1933-05-09 |
| FR700634A (fr) | 1931-03-05 |