| All Patents in class 33/537 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 1,355,809 | Oct. 19, 1920 | E.J. Bryant | Toolmaker's Adjustable Knee | angle bars and angle plates |
| 1,395,664 | Nov. 01, 1921 | E. Benson | Work Support | grinding fixtures |
| 1,931,730 | Oct. 24, 1933 | W.S. Klay | Means for Setting Planer Heads | metal planer accessories |
| 2,351,773 | Jun. 20, 1944 | H.J. Lovenston | Device for Determining Angles | grinding attachments |
| 2,386,880 | Oct. 16, 1945 | J.J. Osplack | Indexing fixture for machine tools | indexers and dividers |
| 2,447,889 | Aug. 24, 1948 | C. Adler | Sine Angle Plate | sine bars |
| 2,567,517 | Sep. 11, 1951 | W.C. Keebler | Vise and angle sine plate | angle bars and angle plates |
| 2,756,508 | Jul. 31, 1956 | C.H. O'Grady, P.C. O'Grady | Combination Sine Bar and V Block | sine bars |
| 2,816,489 | Dec. 17, 1957 | L.W. Robbins, A.P. Smith | Sine plate | angle bars and angle plates |
| 2,889,757 | Jun. 09, 1959 | D.J. Cole | Machine tool vise | metalworking machine vises |
| 4,669,227 | Jun. 02, 1987 | B.C. Treppner | Angle Plate Apparatus With Precisely Adjustable Workpiece Holder | angle bars and angle plates |
