BE715072A - - Google Patents
Info
- Publication number
- BE715072A BE715072A BE715072A BE715072A BE715072A BE 715072 A BE715072 A BE 715072A BE 715072 A BE715072 A BE 715072A BE 715072 A BE715072 A BE 715072A BE 715072 A BE715072 A BE 715072A
- 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
- H04R11/00—Transducers of moving-armature or moving-core type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63887867A | 1967-05-16 | 1967-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE715072A true BE715072A (en:Method) | 1968-11-13 |
Family
ID=24561824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE715072A BE715072A (en:Method) | 1967-05-16 | 1968-05-13 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4813441B1 (en:Method) |
| BE (1) | BE715072A (en:Method) |
| CH (1) | CH494514A (en:Method) |
| DE (1) | DE1762265A1 (en:Method) |
| FR (1) | FR1575802A (en:Method) |
| GB (1) | GB1234273A (en:Method) |
| LU (1) | LU56089A1 (en:Method) |
| NL (1) | NL164721C (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001245390A (ja) * | 2000-02-29 | 2001-09-07 | Star Micronics Co Ltd | 電気音響変換器 |
| CN104754439A (zh) * | 2015-04-21 | 2015-07-01 | 苏州亿欧得电子有限公司 | 一种低频性能良好的受话器 |
| WO2017212698A1 (ja) * | 2016-06-09 | 2017-12-14 | アルプス電気株式会社 | 発音装置 |
-
1968
- 1968-05-10 FR FR1575802D patent/FR1575802A/fr not_active Expired
- 1968-05-10 CH CH699568A patent/CH494514A/fr not_active IP Right Cessation
- 1968-05-11 DE DE19681762265 patent/DE1762265A1/de not_active Withdrawn
- 1968-05-13 GB GB1234273D patent/GB1234273A/en not_active Expired
- 1968-05-13 BE BE715072A patent/BE715072A/xx unknown
- 1968-05-15 JP JP3228168A patent/JPS4813441B1/ja active Pending
- 1968-05-15 NL NL6806874A patent/NL164721C/xx active
- 1968-05-15 LU LU56089D patent/LU56089A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1762265B2 (en:Method) | 1971-01-28 |
| GB1234273A (en:Method) | 1971-06-03 |
| NL164721C (nl) | 1981-01-15 |
| JPS4813441B1 (en:Method) | 1973-04-27 |
| CH494514A (fr) | 1970-07-31 |
| FR1575802A (en:Method) | 1969-07-25 |
| DE1762265A1 (de) | 1970-04-16 |
| LU56089A1 (en:Method) | 1969-02-10 |
| NL6806874A (en:Method) | 1968-11-18 |