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| Patents for Jeffrey J. Plummer | |||||
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| Number | Title | Classification(s) | |||
| 4,553,738 | Cable pulling device with anti-reversing clutch | 254/134.3FT, 254/358, 254/376 | |||
| 4,555,093 | Cable pulling device with force indicator and overload protection | 254/275, 254/358, 254/362, 254/380 | |||