发明名称 Improvements in or relating to a vacuum vessel such as a cathode ray tube or a largerectifying tube having a metal wall which is made at least partly from thin sheet metal
摘要
申请公布号 GB786640(A) 申请公布日期 1957.11.20
申请号 GB19540030400 申请日期 1954.10.21
申请人 PHILIPS ELECTRICAL INDUSTRIES LIMITED 发明人
分类号 H01J29/87 主分类号 H01J29/87
代理机构 代理人
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