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发明名称
Electric valve control system
摘要
申请公布号
US2251237(A)
申请公布日期
1941.07.29
申请号
US19400343220
申请日期
1940.06.29
申请人
GENERAL ELECTRIC COMPANY
发明人
BIVENS MAURICE E.
分类号
B23K11/24
主分类号
B23K11/24
代理机构
代理人
主权项
地址
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