| All Patents in class 408/83.5 |
Patents 16 -
30
of 38
      |
| Number | Date | Patentee | Title | Type |
| 1,113,674 | Oct. 13, 1914 | H. Moore | Valve Reseater | valve reseating machines |
| 1,132,396 | Mar. 16, 1915 | J.W. Brooks, C.I. Sedlmayer | Adjustable Valve Reseating or Milling Tool | valve grinding tools |
| 1,227,499 | May 22, 1917 | T.B. Williams, F.L. Smith | Facing-tool for dressing valve-seats, &c. | automotive tools |
| 1,227,511 | May 22, 1917 | T.B. Williams, F.L. Smith | Facing-tool for dressing valve-seats, &c. | automotive tools |
| 1,227,512 | May 22, 1917 | T.B. Williams, F.L. Smith | Facing-tool for dressing valve-seats, &c. | automotive tools |
| 1,227,513 | May 22, 1917 | T.B. Williams, F.L. Smith | Facing-tool for dressing valve-seats, &c. | automotive tools |
| 1,227,514 | May 22, 1917 | F.L. Smith, T.B. Williams | Rotary cutter | automotive tools |
| 1,227,515 | May 22, 1917 | T.B. Williams, F.A. Dexter, F.L. Smith | Facing-tool for dressing valve-seats, &c. | automotive tools |
| 1,236,408 | Aug. 14, 1917 | E.J. Dickson | Valve Reamer and Refacer | valve grinding tools |
| 1,325,278 | Dec. 16, 1919 | F.A. Dexter, B.P. Dexter | Facing-tool for dressing valve-seats, &c. | automotive tools |
| 1,340,359 | May 18, 1920 | F.O. Albertson | Valve-seat reamer | reamers |
| 1,349,153 | Aug. 10, 1920 | F. Hoerner | Adjustable valve-seat facer | vehicle mechanic |
| 1,641,868 | Sep. 06, 1927 | A.C. Savidge | Valve Seat Reamer | valve reseating tools |
| 1,667,218 | Apr. 24, 1928 | T.S. Purnis | Tool for planing valve seats | valve and seat maintenance |
| 1,749,514 | Mar. 04, 1930 | J.Y. Scott | Valve-reseating apparatus | valve and seat maintenance |
