Grooving unit
    1.
    发明授权
    Grooving unit 失效
    挖掘单位

    公开(公告)号:US3555940A

    公开(公告)日:1971-01-19

    申请号:US3555940D

    申请日:1969-05-26

    Applicant: BUDD CO

    Inventor: COOPER WILLIAM C

    CPC classification number: B23B5/02 Y10T82/21 Y10T82/25

    Abstract: A VERTICAL NIPPER TYPE GROOVING UNIT FOR ATTACHING TO A BRAKE DISK STRADDLE FACING MACHINE TO SEQUENTIALLY MACHINE A PRECISION GROOVE ON EACH FACE OF A FINISHED BRAKE DISK.

Patent Agency Ranking