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发明名称
Diffuse reflectivity meter
摘要
申请公布号
US2986065(A)
申请公布日期
1961.05.30
申请号
US19570649579
申请日期
1957.03.29
申请人
SAM NEWMAN
发明人
NEWMAN SAM
分类号
G01N21/47
主分类号
G01N21/47
代理机构
代理人
主权项
地址
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