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| Patents for C. N. Walker | |||||
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| Number | Date | Patentee | Title | Type | |
| 595,512 | Dec. 14, 1897 | G.W. Anderson | Wrench | quick adjust wrenches | |
| 598,504 | Feb. 08, 1898 | E.P. Gaines | Wrench | quick adjust wrenches | |
| 601,146 | Mar. 22, 1898 | J.P. Johnson | Wrench | cylinder tooth wrenches | |
| 622,471 | Apr. 04, 1899 | F.S. Hollweck | Wrench | screw adjust wrenches | |
| 656,394 | Aug. 21, 1900 | E.L. Bill, H.A. Deiters | Pliers | pliers | |
| 689,059 | Dec. 17, 1901 | J.A. Britton | Hose Tongs | combination tools | |
| 756,854 | Apr. 12, 1904 | R. Brockman, W.W. Helle | Compound Tool | combination tools | |
| 889,680 | Jun. 02, 1908 | C.L. Hawes | Polishing Machine | polishing machines | |
| 900,861 | Oct. 13, 1908 | S.N. Hall, M.E. Layne | Wrench | chain and strap wrenches | |
| 943,381 | Dec. 14, 1909 | P. Broadbooks | Pliers | fence | |
| 1,004,920 | Oct. 03, 1911 | A. Shire | Universal Adjustable Miter Jack and Vise | woodworkers vises | |
| 1,009,213 | Nov. 21, 1911 | B.F. Augustine | Rotary Engine | rotary steam engines | |
| 1,104,730 | Jul. 21, 1914 | W.J. Hamblin | Instantaneous Grip Chain Wrench | chain and strap wrenches | |