发明名称 Punch with removable blade
摘要 A punch for cutting an elongated slug from material has a removable hollow blade having first and second sides, one side shorter than the other. The blade is received in a body having upper and lower seats for receiving the first and second sides of the blade. An opening in the body allows for passage of the severed slug.
申请公布号 US4494426(A) 申请公布日期 1985.01.22
申请号 US19830496614 申请日期 1983.05.20
申请人 HARTZELL, JOHN C. 发明人 HARTZELL, JOHN C.
分类号 B26D7/18;B26F1/44;(IPC1-7):B26F1/14 主分类号 B26D7/18
代理机构 代理人
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