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| All Patents in class 184/7.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 832,265 | Oct. 02, 1906 | C.W. Manzel | Lubricating Device | tool lubricators | |
| 2,129,307 | Sep. 06, 1938 | G.T. Moo | Lubrication of Swivel Heads | milling machines | |