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发明名称
Reel drive mechanism for motionpicture film reels
摘要
申请公布号
US2607545(A)
申请公布日期
1952.08.19
申请号
US19470741485
申请日期
1947.04.15
申请人
BELL & HOWELL COMPANY
发明人
MCNABB LOUIS A.
分类号
G03B21/43
主分类号
G03B21/43
代理机构
代理人
主权项
地址
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