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| Patents for Robert P. Singleton | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,620,459 | Nov. 04, 1986 | R.P. Singleton | Speed Socket Wrench | ratchet wrenches | |
| 4,680,994 | Jul. 21, 1987 | R.P. Singleton | Socket Wrench With Reversing Ratchet | ratchet wrenches | |
| 4,991,470 | Feb. 12, 1991 | R.P. Singleton | Socket Wrench With Improved Handle | ||