| Patents for C. H. Duell |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 265,180 | Sep. 26, 1882 | A.W. Swift | Lubricator | steam engine lubricators |
| CA-16,545 | Mar. 20, 1883 | A.W. Swift | Perfectionnements aux Graisseurs | steam engine lubricators |
| 288,376 | Nov. 13, 1883 | G.N. Stearns | Saw-clamp | saw vises |
| 294,097 | Feb. 26, 1884 | S. Van Auken | Mortise-cleaner | mortising machines |
| 319,942 | Jun. 09, 1885 | H. Watkins | Spoke driving and tenoning machine | wheelwright |
| 365,019 | Jun. 14, 1887 | C.T. Phillips | Pipe Wrench | pipe wrenches |
| 396,223 | Jan. 15, 1889 | H.A. Moyer | Spring-vehicle | |
| 409,455 | Aug. 20, 1889 | J.J. Cowell | Miter machine | miter boxes |
| 410,847 | Sep. 10, 1889 | H.A. Moyer | Spring-vehicle | |
