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| Patents for Hart Weigher Co. | |||||
| Picture | Number | Date | Patentee | Title | |
| 502,230 | Jul. 25, 1893 | G.W. Kramer | Steering Gear for Traction Engines | ||
| 503,146 | Aug. 15, 1893 | G.W. Kramer | Steering Gear for Traction Engines | ||
| 503,147 | Aug. 15, 1893 | G.W. Kramer | Steering Gear for Traction Engines | ||
| 505,523 | Sep. 26, 1893 | S.B. Hart | Steering Gear for Traction Engines | ||
| 520,688 | May 29, 1894 | G.W. Kramer | Steering Gear for Traction Engines | ||