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发明名称
Color chart and method of making the same
摘要
申请公布号
US2128676(A)
申请公布日期
1938.08.30
申请号
US19350053303
申请日期
1935.12.07
申请人
INTERCHEMICAL CORPORATION
发明人
IVES HERBERT E.
分类号
G01J3/52
主分类号
G01J3/52
代理机构
代理人
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地址
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