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| Patents for H. D. Barnes | |||||
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| Number | Date | Patentee | Title | Type | |
| 61,503 | Jan. 29, 1867 | H.D. Barnes | Improvement in shingle machines | shingle machines | |
| 71,440 | Nov. 26, 1867 | H.D. Barnes | Improvement in floor-clamps | floor clamps | |