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发明名称
Film movement
摘要
申请公布号
US1850411(A)
申请公布日期
1932.03.22
申请号
US19300447297
申请日期
1930.04.25
申请人
MITCHELL CAMERA CORPORATION
发明人
MITCHELL GEORGE A.
分类号
G03B1/22
主分类号
G03B1/22
代理机构
代理人
主权项
地址
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