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发明名称
Method and apparatus for detecting variations in the appearance of an object or sample
摘要
申请公布号
US2470877(A)
申请公布日期
1949.05.24
申请号
US19460704115
申请日期
1946.10.18
申请人
TOR STULAND
发明人
STULAND TOR
分类号
G01N21/956
主分类号
G01N21/956
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代理人
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