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| All Patents in class 222/192 | |||||
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| Number | Date | Patentee | Title | Type | |
| 238,343 | Mar. 01, 1881 | W.H. Campbell, E.M. Butler | Combination Wrench | wrench combination tools | |
| 4,555,047 | Nov. 26, 1985 | H.E. Ackley | Automatic Toolchanger Tapping Lubricant Dispenser | metalworking machine lubrication | |