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发明名称
Nadelhalterung in elektrischen Tonabnehmern fuer Schallplatten
摘要
申请公布号
DE677923(C)
申请公布日期
1939.07.05
申请号
DE1935D071179D
申请日期
1935.09.29
申请人
LUDWIG DAUTZENBERG
发明人
分类号
G11B3/46
主分类号
G11B3/46
代理机构
代理人
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地址
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