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发明名称
INTERCOMMUNICATION SYSTEM
摘要
申请公布号
CA413139(A)
申请公布日期
1943.06.08
申请号
CAD413139
申请日期
申请人
C. LORENZ AKTIENGESELLSCHAFT
发明人
ROBERT HELMERT
分类号
主分类号
代理机构
代理人
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地址
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