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发明名称
Combination three-color and exposure photometer
摘要
申请公布号
US2982174(A)
申请公布日期
1961.05.02
申请号
US19560579569
申请日期
1956.04.20
申请人
PHOTO RESEARCH CORPORATION
发明人
CRANDELL FRANK F.
分类号
G01J1/42
主分类号
G01J1/42
代理机构
代理人
主权项
地址
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