| 发明名称 |
Bidirectional intercom system e.g. for use in apartments, has integral voice recording and reproducing device |
| 摘要 |
<p>The bidirectional intercom system has integral voice recording and reproducing device.</p> |
| 申请公布号 |
DE10000404(A1) |
申请公布日期 |
2001.08.16 |
| 申请号 |
DE2000100404 |
申请日期 |
2000.01.05 |
| 申请人 |
WALTERING, HERMANN;HAUMER, RICHARD |
发明人 |
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| 分类号 |
H04M1/65;H04M11/02;(IPC1-7):H04M9/08;H04M1/64 |
主分类号 |
H04M1/65 |
| 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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