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发明名称
Fernmelde-, insbesondere Fernsprechanlage
摘要
申请公布号
DE897429(C)
申请公布日期
1953.11.19
申请号
DE1951M009695
申请日期
1951.06.01
申请人
MERCER RICHARD
发明人
MERCER RICHARD
分类号
H04Q3/42
主分类号
H04Q3/42
代理机构
代理人
主权项
地址
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