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发明名称
Roll-film winding mechanism
摘要
申请公布号
US2404291(A)
申请公布日期
1946.07.16
申请号
US19440530607
申请日期
1944.04.12
申请人
BARNET ENSIGN LIMITED
发明人
HUNTER DOUGLAS GORDON
分类号
G03B17/30
主分类号
G03B17/30
代理机构
代理人
主权项
地址
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