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| Patents for National Separator & Machine Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 603,395 | May 03, 1898 | S.A. Baker, M.F. Colby | Separating oil from metal cuttings | |
 | 686,917 | Nov. 19, 1901 | S.A. Baker | Separating oil from metal cuttings | |
 | 698,242 | Apr. 22, 1902 | S.A. Baker | Drilling-machine | |