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摘要
申请公布号
CH349665(A)
申请公布日期
1960.10.31
申请号
CHD349665
申请日期
1957.07.29
申请人
STANDARD TELEPHON UND RADIO AG
发明人
HEINRICH OSWALT,WILHELM
分类号
H03K17/28;H04M3/12
主分类号
H03K17/28
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代理人
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