发明名称 RECOIL DEVICE FOR A ROTARY FORGING MILL
摘要 Operating a rotary forging mill with a gas recoil device by compressing the recoil gas to a limit pressure and then keeping the recoil gas at approximately the same pressure as the recoil piston continues its rearward travel.
申请公布号 US3638466(A) 申请公布日期 1972.02.01
申请号 USD3638466 申请日期 1969.06.19
申请人 JEAN-PAUL CALMES 发明人 JEAN-PAUL CALMES
分类号 B21B21/04;(IPC1-7):B21J9/12 主分类号 B21B21/04
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