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| All Patents in class 222/388 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,255,786 | Feb. 05, 1918 | C.L. Phillips | Grease Gun | grease guns | |
| 1,263,569 | Apr. 23, 1918 | W.J. Kunnecke | Grease Gun | grease guns | |
| 1,276,286 | Aug. 20, 1918 | M.E. Thompson | Grease Gun | grease guns | |
| 4,555,047 | Nov. 26, 1985 | H.E. Ackley | Automatic Toolchanger Tapping Lubricant Dispenser | metalworking machine lubrication | |