| All Patents in class 200/56R |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 530,433 | Dec. 04, 1894 | F. Lane | Indicator for Steam Engines | steam engine indicators |
| 1,639,965 | Aug. 23, 1927 | W.F. Priest | Alarm gauge | steam pressure gauges |
| 1,690,517 | Nov. 06, 1928 | C.J. Brown, C.H. Wilson | Electrical controller and recorder | industrial furnaces |
| 2,211,052 | Aug. 13, 1940 | L.A. Cole | Pressure limiting device | pneumatic |
| 2,333,982 | Nov. 09, 1943 | R.F. Brown | Electrical Contactor Device | scales and balances |
| 3,056,865 | Oct. 02, 1962 | R.H. Damon, Jr., J.P. Reardon | Magnetic Cut-Off for Scales | scales and balances |
