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发明名称
Motion picture electric circuit control apparatus
摘要
申请公布号
US2840659(A)
申请公布日期
1958.06.24
申请号
US19540476717
申请日期
1954.12.21
申请人
WENDELL L. THOMPSON
发明人
COOLEY HAL
分类号
G03B21/50
主分类号
G03B21/50
代理机构
代理人
主权项
地址
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