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| Patents for Robert MacGregor | |||||
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| Picture | Number | Date | Patentee | Title | |
| 3,913,450 | Oct. 21, 1975 | R. MacGregor | Hydraulic control system for press brakes or the like | ||
| 4,170,124 | Oct. 09, 1979 | R. MacGregor | Hydraulic control system for press brakes and the like | ||