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经营范围
发明名称
Metall-Keramik-Roehre und Verfahren zum Aufbringen einer Widerstandsschicht auf die Innenflaeche eines Keramikringes fuer eine solche Roehre
摘要
申请公布号
DE1054594(B)
申请公布日期
1959.04.09
申请号
DE1957G022867
申请日期
1957.09.04
申请人
GENERAL ELECTRIC COMPANY
发明人
GRATTIDGE WALTER
分类号
C04B37/02;H01J21/36
主分类号
C04B37/02
代理机构
代理人
主权项
地址
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