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| All Patents in class 222/260 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,620,824 | Mar. 15, 1927 | C.W. Manzel | Lubricating Gun | ||
| 2,218,363 | Oct. 15, 1940 | E.P. Sundholm | Grease Gun | grease guns | |
| 4,555,047 | Nov. 26, 1985 | H.E. Ackley | Automatic Toolchanger Tapping Lubricant Dispenser | metalworking machine lubrication | |