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经营范围
发明名称
Improvements in or relating to gramophones
摘要
申请公布号
GB317846(A)
申请公布日期
1930.12.16
申请号
GB19290021890
申请日期
1929.07.16
申请人
WILBUR PRODUCTS CO. INC.
发明人
分类号
G11B25/04
主分类号
G11B25/04
代理机构
代理人
主权项
地址
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