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发明名称
Air hammer construction
摘要
申请公布号
US2637300(A)
申请公布日期
1953.05.05
申请号
US19500148990
申请日期
1950.03.10
申请人
THE ROTOR TOOL COMPANY
发明人
SITTERT PAUL R. VAN
分类号
B25D9/16
主分类号
B25D9/16
代理机构
代理人
主权项
地址
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