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| Patents for William Coulson | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-185,401,102 | May 01, 1854 | W. Coulson | Improvements in machinery for mortising and tenoning | mortising machines | |
| GB-185,402,444 | Nov. 17, 1854 | W. Coulson | Machinery for mortising, tenoning and boring | mortising machines | |