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| Patents for J. P. Prutzman | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 65,397 | Jun. 04, 1867 | R.M. Lafferty | Combined Cover Lifter, Hammer & c. | |
 | 95,490 | Oct. 05, 1869 | R.M. Lafferty | Improvement in sawing-machine | |