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| Patents for Daniel Darby | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-190,822,827 | Jul. 08, 1909 | G.H. Fellows, C.H. Fellows, D. Darby | Improvements in sand-papering, emery grinding and similar machines | sanding machines | |
| GB-191,304,871 | Oct. 23, 1913 | G.H. Fellows, C.H. Fellows, D. Darby | Improvements in grinding, sand-papering and analogous machines | sanding machines | |