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发明名称
DURCHSCHUSSSICHERE VORRICHTUNG ZUR UEBERTRAGUNG DES GESPROCHENEN WORTES DURCH EINE DURCHSCHUSSSICHERE WAND.
摘要
申请公布号
DE1942006(U)
申请公布日期
1966.07.07
申请号
DE196600A5708U
申请日期
1966.05.11
申请人
ANNA MARIA ASPRION
发明人
ANNA MARIA ASPRION
分类号
主分类号
代理机构
代理人
主权项
地址
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