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发明名称
Film reel
摘要
申请公布号
US2282119(A)
申请公布日期
1942.05.05
申请号
US19410398945
申请日期
1941.06.20
申请人
EASTMAN KODAK COMPANY
发明人
DARLING HARRY R.
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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