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发明名称
Valve seat gauge
摘要
申请公布号
US1891364(A)
申请公布日期
1932.12.20
申请号
US19300487134
申请日期
1930.10.08
申请人
ALBERTSON & COMPANY, INC.
发明人
ALBERTSON FRANS O.;MADSEN AXEL
分类号
G01B5/00;G01B5/252
主分类号
G01B5/00
代理机构
代理人
主权项
地址
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