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公开(公告)号:US3474008A
公开(公告)日:1969-10-21
申请号:US3474008D
申请日:1966-05-25
Applicant: STANDARD SCREW
Inventor: BUISMAN WILLIAM J
CPC classification number: C23F1/02
公开(公告)号:US3474008A
公开(公告)日:1969-10-21
申请号:US3474008D
申请日:1966-05-25
Applicant: STANDARD SCREW
Inventor: BUISMAN WILLIAM J
CPC classification number: C23F1/02