| Patents for Nathan & Dreyfus |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 64,956 | May 21, 1867 | I. Dreyfus | Improvement in automatic lubricators | oil cups |
| D3,434 | Mar. 30, 1869 | I. Dreyfus | Design for an oil-cup for journal-boxes | machine lubricators |
| 88,620 | Apr. 06, 1869 | A. Friedman | Steam Pump | steam pumps |
| 106,261 | Aug. 09, 1870 | I. Dreyfus | Improvement in lubricators | oil cups |
| 109,118 | Nov. 08, 1870 | I. Dreyfus | Improvement in lubricators | steam engine lubricators |
| RE5,737 | Jan. 20, 1874 | J.R. Sees | Improvement in lubricators | steam engine lubricators |
| 166,080 | Jul. 27, 1875 | I. Dreyfus | Improvement in apparatus for ejecting water | feedwater apparatus |
| 182,180 | Sep. 12, 1876 | I. Dreyfus | Improvement in injectors | feedwater apparatus |
| 213,648 | Mar. 25, 1879 | A. Friedmann | Injector | water injectors |
| 234,157 | Nov. 09, 1880 | E. Wohlers | Injector | water injectors |
| 234,158 | Nov. 09, 1880 | E. Wohlers | Injector | feedwater apparatus |
| 237,716 | Feb. 15, 1881 | J. Absterdam | Apparatus for oiling and lubricating the bearings and cylinders of steam-engines | steam engine lubricators |
| 276,319 | Apr. 24, 1883 | E. Wohlers | Injector | water injectors |
