| All Patents in class 33/201 |
Patents 1 -
15
of 31
      |
| Number | Date | Patentee | Title | Type |
| 51,248 | Nov. 28, 1865 | W.C. Wells | Drill Gage | measurement gauges |
| 76,123 | Mar. 31, 1868 | W.C. Wells | Drill Gage | drill accessories |
| 139,487 | Jun. 03, 1873 | A.C. Trafton | Drill Gage | drill accessories |
| 303,368 | Aug. 12, 1884 | A.G. Goldthwait | Drill Gage | drill accessories |
| 310,420 | Jan. 06, 1885 | A.J. Hellings | Combination Gage | measurement gauges |
| 403,175 | May 14, 1889 | A.F. Brewer | Gage for Grinding Twist or Flat Drills | drill accessories |
| 403,740 | May 21, 1889 | I. Culver | Drill Gage | measurement gauges |
| 447,475 | Mar. 03, 1891 | B.H. Pomeroy | Drill and Tap Scale | gauges |
| 465,397 | Dec. 15, 1891 | N.B. Taylor | Machinist's Gage | special purpose gauges |
| 494,169 | Mar. 28, 1893 | O.W. Schaum | Combination Gage | gauges |
| 563,089 | Jun. 30, 1896 | E.C. Strange | Mechanic's Tool | measurement gauges |
| 609,895 | Aug. 30, 1898 | C.A. Mitchell | Combined Drill Gage and Protractor | protractors |
| 715,377 | Dec. 09, 1902 | J.P. Hayes | Gage for Cutters or Tools | special purpose gauges |
| 728,558 | May 19, 1903 | C.E. Eldridge | Gage | special purpose gauges |
| 926,079 | Jun. 22, 1909 | S.G. Ryder | Gage | drilling and boring |
