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| Patents for Lawrence E. Pratt | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,304,766 | Dec. 08, 1942 | L.E. Pratt | Universal Coupling | wrench components | |
| 2,469,572 | May 10, 1949 | L.E. Pratt | Reverisble Friction Clutch Wrench | ratchet wrenches | |