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发明名称
Tube à décharge.
摘要
申请公布号
CH262422(A)
申请公布日期
1949.06.30
申请号
CHD262422
申请日期
1947.12.04
申请人
DION,GEORGES
发明人
DION,GEORGES
分类号
H01J21/08
主分类号
H01J21/08
代理机构
代理人
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