-
公开(公告)号:US3415146A
公开(公告)日:1968-12-10
申请号:US53999566
申请日:1966-04-04
CPC分类号: B23B39/14 , B23Q1/48 , B44B3/04 , B44B3/061 , B44B3/065 , Y10S408/01 , Y10T29/50 , Y10T408/5612 , Y10T409/30112 , Y10T409/301176 , Y10T409/306216
公开(公告)号:US3415146A
公开(公告)日:1968-12-10
申请号:US53999566
申请日:1966-04-04
CPC分类号: B23B39/14 , B23Q1/48 , B44B3/04 , B44B3/061 , B44B3/065 , Y10S408/01 , Y10T29/50 , Y10T408/5612 , Y10T409/30112 , Y10T409/301176 , Y10T409/306216