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Charles Kettering
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| Number | Title | Issue Date |
| 6399881 | Multi-sectional utility pole having slip-joint conical connections A multi-sectional utility pole includes at least two sections of straight pipe, which are joined and connected by a slip joint connection. The slip joint consists of two mating conical sections, with one attached to each section of the pole. The slip join... | 06/04/2002 |
| 6383180 | Closed loop catheter coolant system A coolant system for a cryoablation or treatment probe such as a mapping or ablation catheter, or a treatment wand, includes a compressor and condenser having a low pressure inlet side and a high pressure outlet side, wherein the outlet side passes throug... | 05/07/2002 |