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发明名称
Actuating apparatus for sound system
摘要
申请公布号
US2594178(A)
申请公布日期
1952.04.22
申请号
US19480013245
申请日期
1948.03.05
申请人
EXCEL MOVIE PRODUCTS, INC.
发明人
KARR PHILIP L.
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
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