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| Patents for Owatonna Tool Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,709,913 | Apr. 23, 1929 | R.A. Kaplan | Gear Puller | ||
| 1,768,692 | Jul. 01, 1930 | R.A. Kaplan | Tool | ||
| 1,889,750 | Dec. 06, 1932 | R.A. Kaplan | Method And Apparatus For Removing Hubs | ||
| 2,052,304 | Aug. 25, 1936 | R.A. Kaplan | Pulling Tool | ||
 | 2,119,128 | May 31, 1938 | I.J. Clark | Valve Spring Compressor | |
| 2,288,906 | Jul. 07, 1942 | R.A. Kaplan | Extacting Tool | ||
| 2,324,847 | Jul. 20, 1943 | R.A. Kaplan | Tool | ||
| 2,683,387 | Jul. 13, 1954 | R.A. Kaplan | Wheel and Axle Nut Wrench | ||