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| Number | Title | Issue Date |
| 6038903 | Dual headed bending machine A bending machine has a machine bed on which a pipe supporting carriage is mounted to move a pipe in a first direction toward a dual bend head assembly at the forward end of the machine bed. The assembly has a support frame and first and second spaced ben... | 03/21/2000 |
| 5426965 | Carriage boost drive A boost system (53) traveling behind the carriage (12) of a tube bending machine includes an hydraulic boost cylinder (58) that slidably receives a boost shaft (52) that is connected to the carriage. The boost cylinder has a piston fixed to the boost shaf... | 06/27/1995 |
