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经营范围
发明名称
Vapor electric device
摘要
申请公布号
US2447637(A)
申请公布日期
1948.08.24
申请号
US19470763819
申请日期
1947.07.26
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
COLAIACO AUGUST P.
分类号
H01J13/04;H01J13/12
主分类号
H01J13/04
代理机构
代理人
主权项
地址
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