| All Patents in class 60/517 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | 153,440 | Jul. 28, 1874 | J. Laubereau | Air-Motors |
| | 228,717 | Jun. 08, 1880 | E.F. Woodbury, G. Patten, J. Merrill, J.A. Woodbury | Heaters for Air-Engines |
| | 289,484 | Dec. 04, 1883 | E.F. Woodbury, G. Patten, J. Merrill, J.A. Woodbury | Air Engine Heater |
| | 289,485 | Dec. 04, 1883 | J.A. Woodbury, E.F. Woodbury, G. Patten, J. Merrill | Heater for Air Engines |
 | 419,805 | Jan. 21, 1890 | C.W. Weiss | Thermo Dynamic Motor |
| | 514,169 | Feb. 06, 1894 | N. Tesla | Reciprocating engine |
 | 723,660 | Mar. 24, 1903 | H. Essex | Caloric-engine |
