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| All Patents in class 222/321.6 | |||||
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| Number | Date | Patentee | Title | Type | |
| 333,575 | Jan. 05, 1886 | O.H. Warren | Oil Can | oil cans | |
| 2,314,959 | Mar. 30, 1943 | C.W. Wehe | Powdered soap dispenser | ||
| 4,555,047 | Nov. 26, 1985 | H.E. Ackley | Automatic Toolchanger Tapping Lubricant Dispenser | metalworking machine lubrication | |