| Patents for Goodell-Pratt Co. |
Patents 31 -
45
of 46
      |
| Number | Date | Patentee | Title | Type |
| 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 | |
| 1,564,460 | Dec. 08, 1925 | F.L. Young | Drill | handheld power drills |
| 1,584,071 | May 11, 1926 | G.A. Arnold | Drill supporting and feeding apparatus | handheld power drills |
| 1,593,908 | Jul. 27, 1926 | L.L. Miller | Bit-brace chuck | brace chucks |
| 1,620,440 | Mar. 08, 1927 | G.W. Cary | Drill chuck | drill chucks |
| 1,624,339 | Apr. 12, 1927 | O.D. Hapgood | Level | levels |
| 1,712,261 | May 07, 1929 | F.E. Farley | Switch for power drills | handheld power drills |
| 1,733,931 | Oct. 29, 1929 | G.A. Arnold | Lubricating bearing | handheld power drills |
| D80,156 | Dec. 17, 1929 | G.R. Wilcox | Design for an electric drill | handheld power drills |
| 1,752,112 | Mar. 25, 1930 | R.O. Stetson, C.D. Severance | Spirit level | levels |
| 1,770,884 | Jul. 15, 1930 | F.E. Farley | Breast drill | breast drills |
