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| Number | Title | Issue Date |
| 4931326 | Reinforced flexible plastic tubing and methods of manufacture Flexible, composite tubular devices of the present invention include a flexible plastic tube and a reinforcing flexible, tubular member at least substantially embedded in the tube, the member having an outer side, an inner side opposing the outer side and... | 06/05/1990 |
| 4759981 | Welding backup tape assembly A welding backup tape assembly includes a flexible, elongated, heat resistant ribbon, such as a metal foil strip, with a flexible, elongated, heat resistant, fibrous rope having a flexible reinforcing core, preferably metallic, attached to one major side ... | 07/26/1988 |
