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发明名称
Photographic negative carrier
摘要
申请公布号
US2249228(A)
申请公布日期
1941.07.15
申请号
US19380246956
申请日期
1938.12.21
申请人
ROGERS ELWOOD C
发明人
ROGERS ELWOOD C.
分类号
G03B27/62
主分类号
G03B27/62
代理机构
代理人
主权项
地址
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