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公开(公告)号:US3492914A
公开(公告)日:1970-02-03
申请号:US3492914D
申请日:1968-02-12
申请人: RUSSELL W ANTHONY
发明人: ANTHONY RUSSELL W
CPC分类号: B23B31/404 , Y10T82/268 , Y10T279/1045 , Y10T279/28 , Y10T279/3487 , Y10T409/109699
公开(公告)号:US3492914A
公开(公告)日:1970-02-03
申请号:US3492914D
申请日:1968-02-12
申请人: RUSSELL W ANTHONY
发明人: ANTHONY RUSSELL W
CPC分类号: B23B31/404 , Y10T82/268 , Y10T279/1045 , Y10T279/28 , Y10T279/3487 , Y10T409/109699