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经营范围
发明名称
Multiple tapping head
摘要
申请公布号
US2556601(A)
申请公布日期
1951.06.12
申请号
US19470727517
申请日期
1947.02.10
申请人
NILES-BEMENT-POND COMPANY
发明人
SCHOFIELD WILLIAM F.
分类号
B23G1/20
主分类号
B23G1/20
代理机构
代理人
主权项
地址
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