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| Patents for John Lotka | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-53,058 | Aug. 01, 1896 | J. Shafer | Wrench | axle nut wrenches | |
| CA-54,038 | Nov. 11, 1896 | T. Dixon | Combination Pipe and Monkey-Wrench | quick adjust wrenches | |
| 897,335 | Sep. 01, 1908 | T.R. Almond | Drill-chuck | drill chucks | |
| 1,046,809 | Dec. 10, 1912 | J. Kunz | Mechanical Hammer | power hammers | |