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经营范围
发明名称
Reloadable film cartridge
摘要
申请公布号
US2072625(A)
申请公布日期
1937.03.02
申请号
US19350038474
申请日期
1935.08.29
申请人
DU PONT FILM MANUFACTURING CORPORATION
发明人
ROSE CHESTER E.
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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