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发明名称
Motion-picture apparatus
摘要
申请公布号
US1788808(A)
申请公布日期
1931.01.13
申请号
US19260155719
申请日期
1926.12.18
申请人
STEIN SAMUEL F
发明人
STEIN SAMUEL F.
分类号
G03B15/08
主分类号
G03B15/08
代理机构
代理人
主权项
地址
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