BE547497A - - Google Patents
Info
- Publication number
- BE547497A BE547497A BE547497DA BE547497A BE 547497 A BE547497 A BE 547497A BE 547497D A BE547497D A BE 547497DA BE 547497 A BE547497 A BE 547497A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/021—Microphones with granular resistance material
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US512672A US2967914A (en) | 1955-06-02 | 1955-06-02 | Telephone transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE547497A true BE547497A (cg-RX-API-DMAC10.html) |
Family
ID=24040062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE547497D BE547497A (cg-RX-API-DMAC10.html) | 1955-06-02 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2967914A (cg-RX-API-DMAC10.html) |
| BE (1) | BE547497A (cg-RX-API-DMAC10.html) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8054566B2 (en) * | 2005-03-21 | 2011-11-08 | Bayer Materialscience Ag | Optical lens displacement systems |
| US7521840B2 (en) * | 2005-03-21 | 2009-04-21 | Artificial Muscle, Inc. | High-performance electroactive polymer transducers |
| US7595580B2 (en) * | 2005-03-21 | 2009-09-29 | Artificial Muscle, Inc. | Electroactive polymer actuated devices |
| US7521847B2 (en) * | 2005-03-21 | 2009-04-21 | Artificial Muscle, Inc. | High-performance electroactive polymer transducers |
| US7492076B2 (en) * | 2006-12-29 | 2009-02-17 | Artificial Muscle, Inc. | Electroactive polymer transducers biased for increased output |
| US7952261B2 (en) | 2007-06-29 | 2011-05-31 | Bayer Materialscience Ag | Electroactive polymer transducers for sensory feedback applications |
| EP2239793A1 (de) | 2009-04-11 | 2010-10-13 | Bayer MaterialScience AG | Elektrisch schaltbarer Polymerfilmaufbau und dessen Verwendung |
| SG193003A1 (en) | 2011-03-01 | 2013-10-30 | Bayer Ip Gmbh | Automated manufacturing processes for producing deformable polymer devices and films |
| CN103703404A (zh) | 2011-03-22 | 2014-04-02 | 拜耳知识产权有限责任公司 | 电活化聚合物致动器双凸透镜系统 |
| WO2013142552A1 (en) | 2012-03-21 | 2013-09-26 | Bayer Materialscience Ag | Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices |
| KR20150031285A (ko) | 2012-06-18 | 2015-03-23 | 바이엘 인텔렉쳐 프로퍼티 게엠베하 | 연신 공정을 위한 연신 프레임 |
| US9590193B2 (en) | 2012-10-24 | 2017-03-07 | Parker-Hannifin Corporation | Polymer diode |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB368344A (en) * | 1930-12-04 | 1932-03-04 | Harold Bertram Mead | Improvements relating to conical diaphragms for sound reproducing and recording apparatus |
| US2149628A (en) * | 1935-09-16 | 1939-03-07 | Associated Electric Lab Inc | Telephone transmitter |
| US2225488A (en) * | 1938-06-18 | 1940-12-17 | Bell Telephone Labor Inc | Impulse translating apparatus |
| US2331525A (en) * | 1941-11-06 | 1943-10-12 | Walker Electrical Company | Automatic outlet box making machine |
| US2585052A (en) * | 1948-04-23 | 1952-02-12 | Int Standard Electric Corp | Granule type acoustic transducer |
-
0
- BE BE547497D patent/BE547497A/xx unknown
-
1955
- 1955-06-02 US US512672A patent/US2967914A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2967914A (en) | 1961-01-10 |