| All Patents in class 251/285 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
 | 310,019 | Dec. 30, 1884 | A.G. Bayles | Combined Wrench and Gage For Gas Service-Pipe Cocks |
| | 368,445 | Aug. 16, 1887 | C.W. Baldwin | Gas Engine |
| | 397,904 | Feb. 19, 1889 | W.F. Folmer | Gas Burner for Billiard Tables |
| | 564,500 | Jul. 21, 1896 | E.A. Benedict, C. Benedict | Spraying-nozzle |
 | 1,595,619 | Aug. 10, 1926 | C.S. Alt, R.R. Beck | Carburetor |
| | 2,129,499 | Sep. 06, 1938 | W.S. Landon | Control Device |
| | 2,147,945 | Feb. 21, 1939 | P.S. Russel, A.G. Hann | Control Device |
| | 2,276,227 | Mar. 10, 1942 | E.J. Dillman | Control Device |
| | 2,406,228 | Aug. 20, 1946 | W.S. Landon | Burner Control Means |
| | 3,084,899 | Apr. 09, 1963 | C.L. Gschwind, L.A. Dever | Manual Three Direction Tracer |
