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发明名称
Improvements in or relating to gramophone record cutting machines
摘要
申请公布号
GB356881(A)
申请公布日期
1931.09.17
申请号
GB19300022102
申请日期
1930.07.22
申请人
SIEMENS & HALSKE AKTIEN-GESELLSCHAFT
发明人
分类号
G11B3/36
主分类号
G11B3/36
代理机构
代理人
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