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经营范围
发明名称
Vapor electric device
摘要
申请公布号
US2214596(A)
申请公布日期
1940.09.10
申请号
US19380201955
申请日期
1938.04.14
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
ROSE HERBERT A.
分类号
H01J13/20
主分类号
H01J13/20
代理机构
代理人
主权项
地址
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