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发明名称
Sealed photographic film roll
摘要
申请公布号
US2630385(A)
申请公布日期
1953.03.03
申请号
US19480057564
申请日期
1948.10.30
申请人
POLAROID CORPORATION
发明人
WOLFF OTTO E.
分类号
G03B19/04;G03C8/42
主分类号
G03B19/04
代理机构
代理人
主权项
地址
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