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发明名称
Bristle tester
摘要
申请公布号
US1783455(A)
申请公布日期
1930.12.02
申请号
US19290351259
申请日期
1929.03.30
申请人
PITTSBURGH PLATE GLASS COMPANY
发明人
SCHNEIDER FREDERICK W.
分类号
G01N3/20
主分类号
G01N3/20
代理机构
代理人
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地址
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