| All Patents in class 73/737 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 23,032 | Feb. 22, 1859 | T.W. Lane | Steam-pressure gage | steam pressure gauges |
| RE5,320 | Mar. 11, 1873 | T.W. Lane | Improvement in steam-gages | steam pressure gauges |
| 145,726 | Dec. 23, 1873 | G.H. Crosby | Improvement in pressure-gages | steam pressure gauges |
| 549,700 | Nov. 12, 1895 | J.H. Millett, C.B. Bosworth | Steam-gage | steam pressure gauges |
| 764,015 | Jul. 05, 1904 | G. Spencer | Pressure Gage | vacuum and pressure gauges |
| 1,100,756 | Jun. 23, 1914 | C.J. Manning | Double Spring Gage | gauges |
| 1,192,443 | Jul. 25, 1916 | C.J. Manning | Double Spring Gage | vacuum and pressure gauges |
| 1,625,985 | Apr. 26, 1927 | G.H. Clark | Pressure Gauge | vacuum and pressure gauges |
