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发明名称
Motion picture projecting machine
摘要
申请公布号
US1975336(A)
申请公布日期
1934.10.02
申请号
US19320599612
申请日期
1932.03.18
申请人
THE BELL & HOWELL COMPANY
发明人
STECHBART BRUNO
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
主权项
地址
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