| 发明名称 |
NOISE SHIELDING EAR-PIECE |
| 摘要 |
An ear-piece for a telephone receiver or ear defender which includes an ear receiving enclosure having a periphery for juxtaposition to the regions of a user's head surrounding his ear which conforms to the cranial region of a user around his ear.
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| 申请公布号 |
CA2124231(A1) |
申请公布日期 |
1995.11.26 |
| 申请号 |
CA19942124231 |
申请日期 |
1994.05.25 |
| 申请人 |
PAIVARINTA, REIJO J. |
发明人 |
PAIVARINTA, REIJO J. |
| 分类号 |
A61F11/14;H04R1/10;(IPC1-7):A61F11/14;H04M1/03 |
主分类号 |
A61F11/14 |
| 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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