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发明名称
Grinder for gate valve inserts
摘要
申请公布号
US2417737(A)
申请公布日期
1947.03.18
申请号
US19450600296
申请日期
1945.06.19
申请人
CROCKER CULP LIDE
发明人
CULP LIDE CROCKER
分类号
B24B15/00
主分类号
B24B15/00
代理机构
代理人
主权项
地址
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