| All Patents in class 74/596 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 177,088 | May 09, 1876 | W.F. Barnes, J. Barnes | Improvement in foot-powers | human powered machines |
| 335,884 | Feb. 09, 1886 | G.W. Bigelow | Direct Acting Engine | steam engines |
| 593,296 | Nov. 09, 1897 | J.J. Heilmann | Oil and Gas Engine | oil engines |
| 646,993 | Apr. 10, 1900 | C.A. Scott | Explosion Engine | gas and gasoline engines |
| 2,807,973 | Oct. 01, 1957 | H.J. Siekmann, W.H. Meyer, administrator, W.R. Meyer, deceased (estate of) | Apparatus for Manufacturing Crankshafts Automatically | crankshaft lathes |
