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经营范围
发明名称
Verfahren zur vakuumdichten Einschmelzung eines Glas- oder Keramikrohres in ein Metall- oder Keramikrohr
摘要
申请公布号
DE766463(C)
申请公布日期
1953.06.08
申请号
DE1939S136914D
申请日期
1939.04.30
申请人
SIEMENS & HALSKE A. G.
发明人
ETZRODT ADALBERT DR. PHIL.;FRITSCH PAUL
分类号
H01J5/20
主分类号
H01J5/20
代理机构
代理人
主权项
地址
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