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发明名称
Method and means for controlling film in recording and reproducing apparatus
摘要
申请公布号
US2093899(A)
申请公布日期
1937.09.21
申请号
US19370142681
申请日期
1937.05.14
申请人
WEBER CARL M
发明人
WEBER CARL M.
分类号
G11B15/50
主分类号
G11B15/50
代理机构
代理人
主权项
地址
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