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| Patents for John McLachlan | |||||
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| Number | Date | Patentee | Title | Type | |
| XC-2,801 | Sep. 29, 1868 | J. McLachlan, A. Kay | Expanding mandrel for turning lathe | metal lathe chucks | |
| 1,395,587 | Nov. 01, 1921 | J. McLachlan | Cam Shaft Remover | ||