| Patents for John R. Snow |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| 192,867 | Jul. 10, 1877 | A. Holbrook | Improvement in Mallets | mallets |
| 193,547 | Jul. 24, 1877 | M.M. Pettes | Pinchers | pliers |
| 198,935 | Jan. 08, 1878 | W.L. Gilchrist | Improvement in screw drivers | screwdriver blades |
| 201,938 | Apr. 02, 1878 | W.E. Nickerson | Improvement in cutters for reducing bark | bark processing machines |
| 207,421 | Aug. 27, 1878 | R.K. Huntoon | Improvement in gas-exhaust regulators | steam engine governors |
| CA-11,789 | Sep. 20, 1880 | H.G. Ashton | Perfectionnements aux Soupapes de Sûreté | steam safety valves |
| CA-13,718 | Nov. 19, 1881 | H.G. Ashton | Perfectionnements aux Soupapes de Sûreté | steam safety valves |
| CA-13,719 | Nov. 19, 1881 | H.G. Ashton | Perfectionnements aux Soupapes de Sûreté | steam safety valves |
| 291,126 | Jan. 01, 1884 | H.G. Ashton | Safety-Valve | steam safety valves |
| 299,503 | Jun. 03, 1884 | H.G. Ashton | Safety Valves | steam safety valves |
| 306,208 | Oct. 07, 1884 | R. Gould, H.G. Ashton | Safety Valves | steam safety valves |
| 330,551 | Nov. 17, 1885 | F. Boardman | Pivoting-chuck | watchmaker |
| 343,194 | Jun. 08, 1886 | F.S. Pearson | Wire Splicer | pliers |
| 359,722 | Mar. 22, 1887 | J.F. Guthrie, Jr. | Improvement In Pipe-Wrenches | pipe wrenches |
| 379,010 | Mar. 06, 1888 | B.J. Greely | Stopper-extractor | non worm cork extractors |
