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发明名称
PROTECTIVE COATINGS FOR PHOTOGRAPHIC SILVER IMAGES
摘要
申请公布号
CA844026(A)
申请公布日期
1970.06.09
申请号
CAD844026
申请日期
申请人
POLAROID CORPORATION
发明人
EDWIN H. LAND;MEROE M. MORSE
分类号
主分类号
代理机构
代理人
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