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Patents for Robert A. Schultz | |||||
Number | Date | Patentee | Title | Type | |
611,711 | Oct. 04, 1898 | R.A. Schultz, C.L. Schultz | Traction Engine | internal combustion traction engines | |
645,630 | Mar. 20, 1900 | R.A. Schultz, C.L. Schultz | Traction Engine | internal combustion traction engines |