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经营范围
发明名称
Improvements in or relating to sound film reproducing apparatus
摘要
申请公布号
GB476777(A)
申请公布日期
1937.12.15
申请号
GB19360028056
申请日期
1936.10.15
申请人
ZEISS IKON AKTIENGESELLSCHAFT
发明人
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
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地址
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