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| All Patents in class 74/457 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,640,159 | Feb. 08, 1972 | A.H. Brickley, K.F. Halls | Adjustable Jaw Wrench | quick adjust wrenches | |
| 4,060,007 | Nov. 29, 1977 | G.N. Levesque | Clutch Teeth | ||