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| Patents for Robert Davidson | |||||
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| Picture | Number | Date | Patentee | Title | |
| 782,590 | Feb. 14, 1905 | R. Davidson, G.M. Wolcott | Lubricator | ||
| 783,717 | Feb. 28, 1905 | G.M. Wolcott, R. Davidson, W.E. Bryant | Visible Auxiliary Oiler for Lubricators | ||
| 783,718 | Feb. 28, 1905 | G.M. Wolcott, R. Davidson, W.E. Bryant | Sight Feed Lubricator | ||
| 814,016 | Mar. 06, 1906 | R. Davidson, G.M. Wolcott, W.E. Bryant | Lubricator | ||
| 897,599 | Sep. 01, 1908 | R. Davidson | Lubricator | ||