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发明名称
Photographic film holder for use in developing
摘要
申请公布号
US2498058(A)
申请公布日期
1950.02.21
申请号
US19470749586
申请日期
1947.05.21
申请人
WOITOVITCH PETER S
发明人
WOITOVITCH PETER S.
分类号
G03D13/14
主分类号
G03D13/14
代理机构
代理人
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