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发明名称
Optical color-matching apparatus
摘要
申请公布号
US2068301(A)
申请公布日期
1937.01.19
申请号
US19350023899
申请日期
1935.05.28
申请人
WILHELM NAGEL
发明人
NAGEL WILHELM
分类号
G01J1/22
主分类号
G01J1/22
代理机构
代理人
主权项
地址
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