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| Patents for Roald Cann | |||||
| Number | Date | Patentee | Title | Type | |
| 2,838,885 | Jun. 17, 1958 | R. Cann | Compensating radial work support for an internal centerless grinder | grinders | |
| 2,838,888 | Jun. 17, 1958 | R. Cann, J.W. Lovely | Compensating radial work support for an internal centerless grinder | grinders | |