| All Patents in class 73/431 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,803,842 | May 05, 1931 | K.S. Davidson | Gauge Glass Mounting | gauges |
| 1,976,938 | Oct. 16, 1934 | W.R. Hedeman | Pressure Gauge | vacuum and pressure gauges |
| 1,986,540 | Jan. 01, 1935 | J.G. Sisson | Dial Indicator | dial indicator gauges |
| 2,013,176 | Sep. 03, 1935 | J.G. Sisson | Dial Indicator | dial indicator gauges |
| 2,746,785 | May 22, 1956 | A.H. Emery | Bezel Holding Ring | dial indicator attachments |
| 3,226,836 | Jan. 04, 1966 | R.D. Bond | Fluid-entry-resistant gauges and method | |
| 3,439,543 | Apr. 22, 1969 | D.H. Aldeborgh | Combined Crystal And Bezel Ring For Dial Indicators | |
