Patents Represented by Attorney Joe E. Edwards

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  • Drill bit
    Patent number: 3989315
    Abstract: A drill bit having a roller cutter supported by ball bearings and a ball retainer retained in position both axially and rotationally within the ball loading hole by a plug which is mechanically wedged into secured and sealed position within the outer end of the ball loading hole.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: November 2, 1976
    Assignee: Reed Tool Company
    Inventor: Henry W. Murdoch