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发明名称
Motion picture machine
摘要
申请公布号
US1997410(A)
申请公布日期
1935.04.09
申请号
US19310520311
申请日期
1931.03.05
申请人
RADIO CORPORATION
发明人
DOUDEN WILLIAM L.
分类号
G03B1/42
主分类号
G03B1/42
代理机构
代理人
主权项
地址
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