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| Patents for Koehring-Waterous Ltd. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 3,081,821 | Mar. 19, 1963 | A.R. Hamilton | Cylinder mold | |
 | 3,516,462 | Jun. 23, 1970 | E.O. Martinson, P.A. Huffaker | Apparatus for harvesting trees | |
 | 3,557,849 | Jan. 26, 1971 | E.O. Martinson | Tree harvester | |
 | 3,606,177 | Sep. 20, 1971 | D.K. Alexander, J.J. Denovan | Wood pulp grinder | |
 | 3,690,568 | Sep. 12, 1972 | D.K. Alexander | Wood grinding | |
 | 3,709,267 | Jan. 09, 1973 | J. Kurelek | Log handling mechanism for tree harvesters | |