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| US4089682 | 24 Nov 1976 | 16 May 1978 | Mitsubishi Kinzoku Kabushiki Kaisha | Cobalt-base sintered alloy |
| US4093454 | 24 Nov 1976 | 6 Jun 1978 | Mitsubishi Kinzoku Kabushiki Kaisha | Nickel-base sintered alloy |
| US6210633 | 28 Feb 2000 | 3 Apr 2001 | Laboratory of New Technologies | Method of manufacturing articles of complex shape using powder materials, and apparatus for implementing this method |
