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| Patents for Petter J. Frantze | |||||
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| Number | Date | Patentee | Title | Type | |
| 141,214 | Jul. 29, 1873 | P.J. Frantze, M. Tillesen, J.A. Gregersen | Improvement in machines for cutting balusters | wood shapers | |
| 156,559 | Nov. 03, 1874 | P.J. Frantze | Improvement in lathes | wood lathes | |