| Patents for American Steam Gauge & Valve Mfg. Co. |
Patents 1 -
10
of 34
      |
| Picture | Number | Date | Patentee | Title |
 | 471,383 | Mar. 22, 1892 | F.H. Haskell | Duplex Pressure Gage |
 | 494,244 | Mar. 28, 1893 | E. Brown | Pyrometer |
| | 515,175 | Feb. 20, 1894 | F.H. Pierpont, L.T. Snow | Reducing Mechanism for Steam Engine Indicator |
| | 785,677 | Mar. 21, 1905 | C.J. Manning | Recording Gage |
| | 821,988 | May 29, 1906 | C.H. Craig | Gage Testing Apparatus |
| | 857,984 | Jun. 25, 1907 | L.M. Ellison | Steam Calorimeter |
| | 877,198 | Jan. 21, 1908 | W.E. Jerauld | Automatic Recording Gage |
| | 900,371 | Oct. 06, 1908 | F.H. Hopkins | Differential Pressure Gage |
| | 908,206 | Dec. 29, 1908 | C.H. Craig, Jr. | Differential Pressure Gage |
| | 908,867 | Jan. 05, 1909 | W.E. Jerauld | Indicator for Engines |
