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发明名称
Method of ascertaining the amount of coating on material
摘要
申请公布号
US1845231(A)
申请公布日期
1932.02.16
申请号
US19290408599
申请日期
1929.11.20
申请人
LEEDS & NORTHRUP COMPANY
发明人
BROWNING BERTIE LEE
分类号
G01N27/42
主分类号
G01N27/42
代理机构
代理人
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