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1.发明授权Ram mechanism with a quick release valve for adjustment of the stroke of the ram 失效具有用于调节冲头行程的快速释放阀的拉姆机构
公开(公告)号：US2765162A
公开(公告)日：1956-10-02
申请号：US29781552
申请日：1952-07-09
Applicant: ELECTROL INC
Inventor： WULFF ROY A
IPC: F41A9/42
CPC classification number: F41A9/42
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公开(公告)号：US2621004A
公开(公告)日：1952-12-09
申请号：US16861850
申请日：1950-06-16
Applicant: ELECTROL INC
Inventor： ASHTON BENJAMIN N , HOLLAND EDMUND D , WULFF ROY A
IPC: B64C25/12
CPC classification number: B64C25/12
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