| Patents for George H. Clark |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| RE2,104 | Nov. 14, 1865 | E.B. Beach | Self-centering chuck | drill chucks |
| 1,222,071 | Apr. 10, 1917 | G.H. Clark | Safety Valve | steam safety valves |
| 1,231,330 | Jun. 26, 1917 | G.H. Clark | Safety Valve | steam safety valves |
| 1,233,752 | Jul. 17, 1917 | G.H. Clark | Safety Valve | steam safety valves |
| 1,356,853 | Oct. 26, 1920 | G.H. Clark | Safety Valve | steam safety valves |
| 1,356,854 | Oct. 26, 1920 | G.H. Clark | Safety Valve | steam safety valves |
| 1,380,094 | May 31, 1921 | G.H. Clark | Safety Valve | steam safety valves |
| 1,625,985 | Apr. 26, 1927 | G.H. Clark | Pressure Gauge | vacuum and pressure gauges |
| 2,224,377 | Dec. 10, 1940 | G.H. Clark | Refrigerating Apparatus | refrigeration apparatus |
| 2,377,612 | Jun. 05, 1945 | G.H. Clark | Wrench | pipe wrenches |
| 2,495,699 | Jan. 31, 1950 | G.H. Clark | Grip Tightening Device for Pipe Wrenches | pipe wrenches |
