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| Patents for Donald Macpherson Blackburn | |||||
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| Picture | Number | Date | Patentee | Title | |
 | GB-658,590 | Oct. 10, 1951 | J.B. Lang, D.M. Blackburn | Tool-holder Attachment for Lathes and Like Machine Tools | |
| 2,972,487 | Feb. 21, 1961 | D.M. Blackburn | Indexing Mechanism | ||