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| Patents Granted on 1986-11-04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,620,459 | Nov. 04, 1986 | R.P. Singleton | Speed Socket Wrench | ratchet wrenches | |
| 4,620,521 | Nov. 04, 1986 | R. Zechlin, R.M. Henderson | Modular Programmable High Energy Ignition System | ignition systems | |