| Patents for Michigan Lubricator Co. |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 657,924 | Sep. 18, 1900 | G.B. Essex | Lubricator | lubricators |
| 672,415 | Apr. 16, 1901 | W.W. Dodge | Lubricator | lubricators |
| 675,864 | Jun. 04, 1901 | W.T. Simpson | Automatic Driver Brake Retainer | locomotive air brake apparatus |
| 782,590 | Feb. 14, 1905 | R. Davidson, G.M. Wolcott | Lubricator | internal combustion engine lubrication |
| 783,717 | Feb. 28, 1905 | R. Davidson, W.E. Bryant, G.M. Wolcott | Visible Auxiliary Oiler for Lubricators | industrial machine lubrication |
| 814,016 | Mar. 06, 1906 | R. Davidson, G.M. Wolcott, W.E. Bryant | Lubricator | steam engines |
| 837,790 | Dec. 04, 1906 | W.E. Bryant | Automatic Checks for Feed Glasses and Water by Passes for Lubricators | lubricators |
| 854,797 | May 28, 1907 | W.E. Bryant | Automatic Oil Check for Lubricator Drain Passages | lubricators |
| 855,932 | Jun. 04, 1907 | W.E. Bryant | Float Valve for Drain Cock Plugs | lubricators |
| 890,757 | Jun. 16, 1908 | W.E. Bryant | Automatic Oil Check for Lubricator Drain Passages | lubricators |
| 897,599 | Sep. 01, 1908 | R. Davidson | Lubricator | steam engine lubricators |
| 1,167,829 | Jan. 11, 1916 | F. Le Roy | Lubricator | steam engine lubricators |
| 1,174,211 | Mar. 07, 1916 | N.W. Whitbeck | Valve | valves |
| 1,226,040 | May 15, 1917 | N.W. Whitbeck | Valve | valves |
| 1,323,195 | Nov. 25, 1919 | N.W. Whitbeck, F. Le Roy | Valve Handle | valves |
