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经营范围
发明名称
Actuating apparatus for sound systems
摘要
申请公布号
US2545941(A)
申请公布日期
1951.03.20
申请号
US19480034194
申请日期
1948.06.21
申请人
ILLINOIS WATCH CASE CO.
发明人
CASE PERCIVAL H.;KARR PHILIP L.;JR. HENRY J. KOEBER,
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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