| Patents for John Duffy |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 476,045 | May 31, 1892 | W.R. Fox | Miter-cutter | miter machines |
| 483,436 | Sep. 27, 1892 | W.R. Fox | Miter-cutter | miter machines |
| 483,838 | Oct. 04, 1892 | W.R. Fox | Milling-machine | milling machines |
| 493,494 | Mar. 14, 1893 | W.R. Fox | Mitering machine | miter machines |
| 502,621 | Aug. 01, 1893 | W.R. Fox | Shaping Machine | metal shapers |
| 504,209 | Aug. 29, 1893 | W.R. Fox | Wood-trimmer | miter machines |
| 549,190 | Nov. 05, 1895 | W.R. Fox | Rivet-making machine | |
| 559,276 | Apr. 28, 1896 | W.R. Fox | Rivet | |
| 614,378 | Nov. 15, 1898 | W.R. Fox | Automatic rim-drilling machine | drilling and boring |
| 653,797 | Jul. 17, 1900 | W.R. Fox | Trimming-machine | miter machines |
| 700,085 | May 13, 1902 | G.H. Radcliffe | Micrometer Calipers | micrometers |
