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公开(公告)号:US3370489A
公开(公告)日:1968-02-27
申请号:US52628166
申请日:1966-02-09
发明人: ANDREASSON DONALD C
IPC分类号: B23D77/00
CPC分类号: B23D77/006 , B23D2277/02 , B23D2277/68 , Y10T407/14 , Y10T408/458 , Y10T408/8923
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公开(公告)号:US3320833A
公开(公告)日:1967-05-23
申请号:US41295364
申请日:1964-11-23
发明人: ANDREASSON DONALD C
CPC分类号: B23B51/0486 , B23B31/1107 , B23B31/1122 , B23B51/06 , B23D77/006 , B23D2277/02 , Y10S408/705 , Y10T407/14 , Y10T408/45 , Y10T408/907
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公开(公告)号:US3359837A
公开(公告)日:1967-12-26
申请号:US42816465
申请日:1965-01-26
发明人: ANDREASSON DONALD C
CPC分类号: B23B51/08 , B23B51/02 , B23B51/06 , B23B2240/08 , B23B2250/12 , B23B2251/02 , Y10S408/713 , Y10T407/14 , Y10T408/45 , Y10T408/9097
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