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| Patents for Parker Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,689,131 | Sep. 14, 1954 | D.E. Priest | Screwdriver with removable blade | screwdriver blades | |
| RE24,465 | Apr. 29, 1958 | G.J. Waterbury | Toggle Actuated, Plier-Type Wrench | locking pliers | |