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发明名称
Membran, insbesondere für elektro-akustische Apparate wie Telephone oder Mikrophone.
摘要
申请公布号
CH169872(A)
申请公布日期
1934.06.15
申请号
CHD169872
申请日期
1933.07.15
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
AKTIENGESELLSCHAFT SIEMENS & HALSKE
分类号
主分类号
代理机构
代理人
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地址
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