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| Patents for Walker Mfg. Co. (Racine) | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,437,606 | Dec. 05, 1922 | V. Jakob, J.J. Mizer | Vehicle roller jack | |
| 1,486,723 | Mar. 11, 1924 | M.F. Bernson | Jack | ||
| CA-239,954 | May 13, 1924 | M.F. Bernson | Jack | ||
 | 1,533,168 | Apr. 14, 1925 | I.E. Dearsley | Lifting Jack | |
| RE16,050 | Apr. 28, 1925 | M.F. Bernson | Jack | ||
| CA-253,367 | Sep. 01, 1925 | M.F. Bernson | Jack | ||
 | 1,621,314 | Mar. 15, 1927 | I.E. Dearsley | Lifting jack | |
 | RE17,050 | Jul. 24, 1928 | I.E. Dearsley | Lifting Jack | |
| 3,218,980 | Nov. 23, 1965 | L.L. Arnes | Pump | ||