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公开(公告)号:US3117397A
公开(公告)日:1964-01-14
申请号:US14490561
申请日:1961-10-13
Applicant: TAYCO DEV
Inventor: TAYLOR PAUL H
CPC classification number: B24B33/082 , B24B33/00 , B24B33/027
公开(公告)号:US3117397A
公开(公告)日:1964-01-14
申请号:US14490561
申请日:1961-10-13
Applicant: TAYCO DEV
Inventor: TAYLOR PAUL H
CPC classification number: B24B33/082 , B24B33/00 , B24B33/027