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| Patents for William Dakin Grimshaw | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-186,400,206 | Jan. 25, 1864 | W.D. Grimshaw | Atmospheric Hammer | power hammers | |
| 45,896 | Jan. 10, 1865 | W.D. Grimshaw | Atmospheric Hammer | power hammers | |