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发明名称
Reel mount spindle
摘要
申请公布号
US2128776(A)
申请公布日期
1938.08.30
申请号
US19350028901
申请日期
1935.06.28
申请人
THE BELL & HOWELL COMPANY
发明人
HOWELL ALBERT S.
分类号
G03B21/32
主分类号
G03B21/32
代理机构
代理人
主权项
地址
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