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发明名称
VORRICHTUNG ZUR SIGNALABGABE IN EINZELNE ZIMMER OD. DGL. VON GEBAEUDEN.
摘要
申请公布号
DE1958443(U)
申请公布日期
1967.04.06
申请号
DE196600D4443U
申请日期
1966.11.04
申请人
JOACHIM DERKSEN
发明人
JOACHIM DERKSEN
分类号
主分类号
代理机构
代理人
主权项
地址
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