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| Patents for William H. Putnam | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,262,979 | Apr. 16, 1918 | W.H. Putnam | Force-feed lubricator | lubricators | |
| 1,262,980 | Apr. 16, 1918 | W.H. Putnam | Grease Gun | grease guns | |