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发明名称
Tool reciprocating device
摘要
申请公布号
US2618107(A)
申请公布日期
1952.11.18
申请号
US19490110521
申请日期
1949.08.16
申请人
ALMA A. HUTCHINS
发明人
MARTIN EARNEST E.
分类号
B24B23/04;E21C37/24
主分类号
B24B23/04
代理机构
代理人
主权项
地址
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