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发明名称
Comparison photometer
摘要
申请公布号
US3323431(A)
申请公布日期
1967.06.06
申请号
US19640359116
申请日期
1964.04.13
申请人
POLAROID CORPORATION
发明人
LAND EDWIN H.
分类号
G01J1/12
主分类号
G01J1/12
代理机构
代理人
主权项
地址
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