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| Patents for John H. Millspaugh | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 122,774 | Jan. 16, 1872 | J.H. Millspaugh | Improvement in panel-raising machines | |
 | 161,810 | Apr. 06, 1875 | J.H. Millspaugh | Improvement in machines for relishing tenons and cutting wedges | |
 | 179,598 | Jul. 04, 1876 | D.K. Overhiser | Improvement in cutter-heads | |