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发明名称
Electric valve and the method of manufacturing it
摘要
申请公布号
US2195245(A)
申请公布日期
1940.03.26
申请号
US19370122432
申请日期
1937.01.26
申请人
GENERAL ELECTRIC COMPANY
发明人
GLASER AUGUST;KOCH WERNER;NEIDHARDT HANS;BRUNKE FRITZ
分类号
H01L21/08
主分类号
H01L21/08
代理机构
代理人
主权项
地址
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