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| Patents for Robert Arthur Bruce | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-190,717,289 | Apr. 23, 1908 | R.A. Bruce | An Improved Mode or System of Producing Rolling Motions, applicable to Wheel Gear Cutting, and like, Machines, Requiring Circumferential Work of an Inter-related Character | metalworking machine mechanisms | |