| All Patents of Type: valve and seat maintenance |
Patents 1 -
15
of 70
      |
| Number | Date | Patentee | Title | Type |
| 429,939 | Jun. 10, 1890 | C.L. Morse | Valve-reseating machine | automotive tools |
| 560,481 | May 19, 1896 | F.E. Dexter | Machine for repairing valves and valve-seats | valve reseating machines |
| 801,350 | Oct. 10, 1905 | T.B. Williams | Valve-reseating machine | automotive tools |
| 814,418 | Mar. 06, 1906 | T.B. Williams | Rotary cutting device | automotive tools |
| 824,321 | Jun. 26, 1906 | T.B. Williams | Valve-reseating machine | automotive tools |
| 865,739 | Sep. 10, 1907 | T.B. Williams | Machine for facing valves, &c. | automotive tools |
| 913,085 | Feb. 23, 1909 | T.B. Williams | Machine for facing valves, &c. | automotive tools |
| 918,805 | Apr. 20, 1909 | T.B. Williams | Machine for reseating valves, &c. | automotive tools |
| 934,642 | Sep. 21, 1909 | T.B. Williams | Valve-reseating tool | automotive tools |
| 944,002 | Dec. 21, 1909 | T.B. Williams, F.L. Smith | Valve-disk-cutting machine | automotive tools |
| 956,918 | May 03, 1910 | T.B. Williams | Valve-reseating tool | automotive tools |
| 1,028,295 | Jun. 04, 1912 | T.B. Williams, F.L. Smith | Valve-seat-dressing tool | automotive tools |
| 1,036,394 | Aug. 20, 1912 | T.B. Williams | Machine for facing valve-seats | automotive 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 |
