发明授权
- 专利标题: Progressive former and method of producing same
- 专利标题(中): 渐进前者,它们的制备方法。
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申请号: EP89107086.4申请日: 1989-04-20
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公开(公告)号: EP0340543B1公开(公告)日: 1994-03-02
- 发明人: Hite, William H. , Roush, Dennis N. , Corthell, Stephen G.
- 申请人: THE NATIONAL MACHINERY COMPANY (an Ohio corporation)
- 申请人地址: 161 Greenfield Street Tiffin Ohio 44883 US
- 专利权人: THE NATIONAL MACHINERY COMPANY (an Ohio corporation)
- 当前专利权人: THE NATIONAL MACHINERY COMPANY (an Ohio corporation)
- 当前专利权人地址: 161 Greenfield Street Tiffin Ohio 44883 US
- 代理机构: Türk, Gille, Hrabal, Leifert
- 优先权: US190175 19880504
- 主分类号: B21F9/02
- IPC分类号: B21F9/02 ; B21J13/04 ; B21J13/14
公开/授权文献
- EP0340543A3 Progressive former and method of producing same 公开/授权日:1990-12-19
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