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| Patents for H. W. Buttorff | |||||
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| Number | Date | Patentee | Title | Type | |
| 235,878 | Dec. 28, 1880 | W.W. Jones | Machine for making rims for tops of metal vessels | sheet metal flanging machines | |
| 244,250 | Jul. 12, 1881 | W.W. Jones | Machine for making rims for metal vessels | sheet metal flanging machines | |