| Patents for Goodell-Pratt Co. |
Patents 16 -
30
of 39
      |
| Number | Date | Patentee | Title | Type |
| 859,059 | Jul. 02, 1907 | C.J. Haeberli, H.E. Schmidt | Angular bit-brace | braces |
| 862,069 | Jul. 30, 1907 | H.E. Goodell | Breast-drill | breast drills |
| 887,423 | May 12, 1908 | W.M. Pratt | Automatic screw-driver | spiral screwdrivers |
| 892,115 | Jun. 30, 1908 | O. Arnold | Convertible drill mechanism | drill accessories |
| 973,489 | Oct. 25, 1910 | F.E. Farley | Drill | drilling and boring |
| 1,045,200 | Nov. 26, 1912 | C.D. Severance | Breast Drill Gearing | breast drills |
| 1,102,581 | Jul. 07, 1914 | O.D. Hapgood | Valve Grinder | valve grinding tools |
| 1,172,793 | Feb. 22, 1916 | O.D. Hapgood | Revolution Counter | measurement gauges |
| 1,449,400 | Mar. 27, 1923 | O.D. Hapgood | Hand tool | screwdrivers |
| 1,456,620 | May 29, 1923 | G.W. Cary | Wrench | self-adjust wrenches |
| 1,462,963 | Jul. 24, 1923 | O.D. Hapgood | Tool | breast drills |
| 1,467,567 | Sep. 11, 1923 | G.W. Cary | Valve Spring Manipulating Device | valve spring tools |
| 1,492,680 | May 06, 1924 | F. Ducharme | Hand tool | screwdrivers |
| 1,508,512 | Sep. 16, 1924 | F.E. Farley | Ratchet mechanism | ratchet braces |
| 1,518,579 | Dec. 09, 1924 | O.D. Hapgood | Valve-grinding tool | |
