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| Number | Title | Issue Date |
| 5275228 | Process and apparatus for production of single-crystal turbine blades A process and apparatus for the production of a single-crystal article, such as a turbine blade, by casting a molten metal into a casting mold with a single crystal seed crystal at the bottom of the casting mold. The casting mold is heated and vacuum-puri... | 01/04/1994 |
| 5261480 | Process and apparatus for repair of drive blades such as turbine blades A process and apparatus for the repair of single-crystal drive blades, such as turbine blades, in which a sound portion of the blade is inserted into an open bottom of a casting mold in communication with a casting cavity in the mold adopted to the shape ... | 11/16/1993 |
| 5193272 | Process for repair of drive blades such as turbine blades A process for the repair of single-crystal drive blades, such as turbine blades, in which a sound portion of the blade is inserted into an open bottom of a casting mold in communication with a casting cavity in the mold adopted to the shape of the blade. ... | 03/16/1993 |
