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发明名称
Colorimeter
摘要
申请公布号
US1938544(A)
申请公布日期
1933.12.05
申请号
US19330674357
申请日期
1933.06.05
申请人
LIGHT RESEARCH CORPORATION
发明人
SCHOENBERG VIRGIL A.
分类号
G01J1/16;G01N21/25
主分类号
G01J1/16
代理机构
代理人
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