| All Patents in class 73/715 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 18,526 | Oct. 27, 1857 | E.G. Allen | Steam-pressure gage | steam pressure gauges |
| 26,871 | Jan. 17, 1860 | E.G. Allen | Steam-gage | steam pressure gauges |
| 30,803 | Dec. 04, 1860 | C.M. Daboll | Pressure-gage | steam pressure gauges |
| 41,182 | Jan. 05, 1864 | W.B. Le Van, S.L. Wiegand | Steam Engine Indicator | steam engine indicators |
| 70,213 | Oct. 29, 1867 | J.P. Holt | Steam Gauge | steam pressure gauges |
| 101,832 | Apr. 12, 1870 | H. Chwatal | Improvement in pressure-gauges | steam pressure gauges |
| 278,907 | Jun. 05, 1883 | A.H. Emery | Pressure-gage | vacuum and pressure gauges |
| 278,908 | Jun. 05, 1883 | A.H. Emery | Pressure-gage | vacuum and pressure gauges |
| 278,909 | Jun. 05, 1883 | A.H. Emery | Pressure and vacuum gage | vacuum and pressure gauges |
| 278,910 | Jun. 05, 1883 | A.H. Emery | Pressure-gage | vacuum and pressure gauges |
| 603,391 | May 03, 1898 | F.L. Wolfe | Pressure-recorder | steam pressure gauges |
| 1,258,426 | Mar. 05, 1918 | W.B. Mackintosh | Gage | measurement gauges |
| 1,265,676 | May 07, 1918 | W. Klump | Gage | gauges |
