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发明名称
Photographic exposure apparatus
摘要
申请公布号
US3143949(A)
申请公布日期
1964.08.11
申请号
US19610155678
申请日期
1961.11.29
申请人
POLAROID CORPORATION
发明人
JR. DEXTER P. COOPER,;SABLE ARTHUR J.
分类号
G03B27/80
主分类号
G03B27/80
代理机构
代理人
主权项
地址
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