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| US5600213 | 6 Jun 1995 | 4 Feb 1997 | Hitachi, Ltd. | Circular accelerator, method of injection of charged particles thereof, and apparatus for injection of charged particles thereof | | US5789875 | 10 Dic 1996 | 4 Ago 1998 | Hitachi, Ltd. | Circular accelerator, method of injection of charged particle thereof, and apparatus for injection of charged particle thereof |
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