发明名称 Anisotropic pyrolytic graphite heater.
摘要 A heater for an indirectly heated vacuum tube cathode is formed of anisotropic pyrolytic graphite in which current passes through the graphite in the "c" direction. <IMAGE>
申请公布号 EP0632479(A1) 申请公布日期 1995.01.04
申请号 EP19940304750 申请日期 1994.06.29
申请人 VARIAN ASSOCIATES, INC. 发明人 TRESEDER, ROBERT C.;GRANT, THOMAS J.
分类号 H01J1/22;H01J1/28 主分类号 H01J1/22
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