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| Patents for G. F. Brown | |||||
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| Number | Date | Patentee | Title | Type | |
| 130,036 | Jul. 30, 1872 | T. Hagerty | Improvement in the Construction of Compasses | compasses | |
| 130,037 | Jul. 30, 1872 | T. Hagerty | Improvement in the Construction of Compasses | compasses | |
| 130,038 | Jul. 30, 1872 | T. Hagerty | Improvement in the Construction of Compasses | dividers | |