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发明名称
Color comparator
摘要
申请公布号
US2054195(A)
申请公布日期
1936.09.15
申请号
US19330696338
申请日期
1933.11.02
申请人
BAUSCH & LOMB OPTICAL COMPANY
发明人
FORREST JOHN W.;FASSIN GUSTAVE
分类号
G01J3/52
主分类号
G01J3/52
代理机构
代理人
主权项
地址
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