| 发明名称 |
Electro-acoustic transducer arranged within the handset of a telephone instrument |
| 摘要 |
An electro-acoustic transducer is arranged within the handset of a telephone instrument. The transducer is elastically seated and is seated at a distance from the walls of the handset so that noises caused by the handset are not transmitted onto the transducer.
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| 申请公布号 |
US4845760(A) |
申请公布日期 |
1989.07.04 |
| 申请号 |
US19860917971 |
申请日期 |
1986.10.14 |
| 申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
AWAKOWICZ, ERWIN;SCHILLER, KURT |
| 分类号 |
H04R17/00;H04M1/03;H04R1/02;H04R1/08;H04R17/02 |
主分类号 |
H04R17/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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