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发明名称
Improvements in ionisation manometer tubes
摘要
申请公布号
GB669631(A)
申请公布日期
1952.04.09
申请号
GB19470030696
申请日期
1947.11.19
申请人
STANDARD TELEPHONES AND CABLES PTY. LIMITED
发明人
分类号
H01J41/04
主分类号
H01J41/04
代理机构
代理人
主权项
地址
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