| All Patents in class 73/736 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 471,383 | Mar. 22, 1892 | F.H. Haskell | Duplex Pressure Gage | vacuum and pressure gauges |
| 677,674 | Jul. 02, 1901 | C.J. Manning | Recording Gage of Steam Pressure on Boilers | steam pressure gauges |
| 900,371 | Oct. 06, 1908 | F.H. Hopkins | Differential Pressure Gage | vacuum and pressure gauges |
| 1,363,415 | Dec. 28, 1920 | F.H. Hopkins | Differential Pressure Gage | vacuum and pressure gauges |
| 1,663,313 | Mar. 20, 1928 | J.W. Motherwell | Adjusting Mechanism for Pressure Gauges | vacuum and pressure gauges |
| 1,734,977 | Nov. 12, 1929 | J.W. Motherwell | Pressure gauge | vacuum and pressure gauges |
| 1,814,092 | Jul. 14, 1931 | J.W. Motherwell | Pressure gauge | vacuum and pressure gauges |
| 1,848,489 | Mar. 08, 1932 | J.W. Motherwell | Pressure gauge | vacuum and pressure gauges |
| 1,933,383 | Oct. 31, 1933 | J.W. Motherwell | Gauge | vacuum and pressure gauges |
| 2,040,681 | May 12, 1936 | H.S. Baker | Gauge | vacuum and pressure gauges |
| 2,239,938 | Apr. 29, 1941 | N.J. Smith | Tube Support for Gauges, Recorders, and the Like | industrial recording apparatus |
| 2,997,873 | Aug. 29, 1961 | A.M. Dexter, Jr. | Pneumatic Dimension Gage | pneumatic measuring gauges |
