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公开(公告)号:US3269162A
公开(公告)日:1966-08-30
申请号:US29612463
申请日:1963-07-18
Applicant: FAY PIPE AND PILE INC
Inventor: FAY JAMES E
IPC: B21C37/12
CPC classification number: B21C37/12
公开(公告)号:US3269162A
公开(公告)日:1966-08-30
申请号:US29612463
申请日:1963-07-18
Applicant: FAY PIPE AND PILE INC
Inventor: FAY JAMES E
IPC: B21C37/12
CPC classification number: B21C37/12