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| Patents for John Derry | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-187,905,295 | Dec. 27, 1879 | J. Derry, W. Bown | Improvements in Tricycles and Parts of Bicycles and Other Velocipedes, and in Wrenches for the Same .. | bicycle or pocket wrenches | |