| All Patents in class 74/88 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 68,071 | Aug. 27, 1867 | D.F. Hartford | Improved Bow-Drill Stock | hand drills |
| 72,632 | Dec. 24, 1867 | D.F. Hartford | Improvement in Stringing Bow-Drill Stocks | hand drills |
| 203,402 | May 07, 1878 | C.L. Bellamy | Spinning-Top Like Hand Drill | hand drills |
| 1,284,108 | Nov. 05, 1918 | C.A. Hultquist | Drilling Machine | |
| 1,510,439 | Sep. 30, 1924 | E.R. Draver | Transmission mechanism for feeders connected in a gang | |
| 1,762,063 | Jun. 03, 1930 | G.H. Knight | Mechanical Movement | metalworking machine mechanisms |
| 2,923,206 | Feb. 02, 1960 | M. Kovac | Indexing Attachment for Milling Machines and the Like | indexers and dividers |
