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| All Patents in class 184/9 | |||||
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| Number | Date | Patentee | Title | Type | |
| 531,590 | Dec. 25, 1894 | T.G. Howells | Lubricator | oil cups | |
| 1,602,376 | Oct. 05, 1926 | R.T. Hazelton | Lubricating Device | metal shapers | |