| All Patents in class 451/365 |
Patents 31 -
37
of 37
      |
| Number | Date | Patentee | Title | Type |
| 2,418,059 | Mar. 25, 1947 | C.W. Varcoe | Angle Plate Clamping Bracket | clamps |
| 2,432,058 | Dec. 02, 1947 | E.A. Reibig, C.A. Wiken | Surface grinder | |
| 2,578,531 | Dec. 11, 1951 | C.H. Drury, E.V. Flanders | Machine for Grinding Impeller Bucket Shanks | profile and contour grinders |
| 2,826,189 | Mar. 11, 1958 | S. Kirzner | Dressing Tool Holder | grinder dressers |
| 2,851,831 | Sep. 16, 1958 | F.P. Healy | Hydraulic work-supporting clamp assembly | engine block and head maintenance |
| 2,919,522 | Jan. 05, 1960 | P.J. Robischung | Electrolytic grinding machine | |
| 4,833,831 | May 30, 1989 | W.T. Armstrong, Jr. | Apparatus and Method for Sizing and Finishing Fixed Jaw Openings of Open-Ended Wrenches | wrench components |
