| All Patents in class 236/68B |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 240,912 | May 03, 1881 | W.D. Leavitt | Baling-press |
 | 247,743 | Oct. 04, 1881 | J.S. Butterfield, J.B. Bryant | Shovel-handle lathe |
| | 296,924 | Apr. 15, 1884 | R.N. Cherry | Self Feeding Ratchet Drill |
| | 2,061,536 | Nov. 17, 1936 | E.J. Dillman | Electrical Control System |
| | 2,180,802 | Nov. 21, 1939 | E.J. Dillman | Control Device |
| | 2,209,768 | Jul. 30, 1940 | E.J. Dillman | Thermostat |
| | 2,228,515 | Jan. 14, 1941 | A.K. Foulds | Control Device |
| | 2,301,383 | Nov. 10, 1942 | E.J. Dillman | Heating System and Control Means Therefor |
| | 2,329,473 | Sep. 14, 1943 | W.S. Landon | Heating Apparatus |
