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公开(公告)号:US2971644A
公开(公告)日:1961-02-14
申请号:US50700055
申请日:1955-05-09
Applicant: CEFILAC
Inventor: JACQUES SEJOURNET
IPC: B21C23/32
CPC classification number: B21C23/32
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2.Method of coating the bore of a heated hollow billet with glass-like lubricating material prior to extrusion of hollow articles 失效
Title translation: 在挤压中空制品之前,用玻璃状润滑材料涂覆加热的中空钢坯的孔的方法公开(公告)号:US3039888A
公开(公告)日:1962-06-19
申请号:US1631160
申请日:1960-03-21
Applicant: CEFILAC
Inventor: JACQUES SEJOURNET , GEORGES LECLERC LOUIS
IPC: B21C23/32
CPC classification number: B21C23/32
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公开(公告)号:US2975509A
公开(公告)日:1961-03-21
申请号:US65634457
申请日:1957-05-01
Applicant: CEFILAC
Inventor: JACQUES SEJOURNET
CPC classification number: F01D5/147 , B21C23/16 , B23P15/02 , B23P15/04 , F01D5/187 , F05D2230/24 , Y10T29/49341 , Y10T29/4981
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公开(公告)号:US2955709A
公开(公告)日:1960-10-11
申请号:US36070853
申请日:1953-06-10
Applicant: CEFILAC
Inventor: JACQUES SEJOURNET
IPC: B21C25/04
CPC classification number: B21C25/04 , B21C33/006 , Y10S428/939 , Y10S428/94
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