| All Patents in class 144/70 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| 115 | Jan. 31, 1837 | J.H. Power | Portable multi-drill mortiser | mortising machines |
| 164,295 | Jun. 08, 1875 | C.J. Hardee | Improvement in lock-mortising machines | mortising machines |
| 393,817 | Dec. 04, 1888 | W.H. Clapp | Portable multi-drill mortising machine | mortising machines |
| 479,377 | Jul. 19, 1892 | A.L. Newton | Mortising auger | mortising machines |
| 481,383 | Aug. 23, 1892 | G.A. Adams | Portable boring and mortising machine | drilling and boring |
| 513,088 | Jan. 23, 1894 | H.W. Crane | Portable multi-drill mortiser | mortising machines |
| 651,315 | Jun. 05, 1900 | I. Schurman | Multi-drill lock mortiser | mortising machines |
| 658,782 | Oct. 02, 1900 | W.T. Kellogg | Auger-cutter | drill bits |
| 661,135 | Nov. 06, 1900 | G.F. Andrews | Hand-cranked portable auger mortiser | human powered machines |
| 838,827 | Dec. 18, 1906 | J.S. Waugh | Portable door-mortising machine | mortising machines |
| 921,795 | May 18, 1909 | G.W. Campbell | Portable door-mortising machine | portable timber mortisers |
| 1,037,939 | Sep. 10, 1912 | J. Leukart | Mortising-machine | carpenter |
| 1,356,394 | Oct. 19, 1920 | G.E. Norris | Mortising-machine | portable timber mortisers |
| 1,449,083 | Mar. 20, 1923 | P.L. Billingsley | Mortising device | mortising machines |
| 1,621,061 | Mar. 15, 1927 | R.L. Carter | Door-mortising machine | mortising machines |
