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公开(公告)号:US2802568A
公开(公告)日:1957-08-13
申请号:US53725255
申请日:1955-09-28
Applicant: DAYTON RUBBER COMPANY
Inventor: KNOX DALE I
公开(公告)号:US2802568A
公开(公告)日:1957-08-13
申请号:US53725255
申请日:1955-09-28
Applicant: DAYTON RUBBER COMPANY
Inventor: KNOX DALE I