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发明名称
Electric valve
摘要
申请公布号
US2118443(A)
申请公布日期
1938.05.24
申请号
US19320614412
申请日期
1932.05.31
申请人
CLAIR L. MCCORKLE
发明人
MCCORKLE DONALD H.
分类号
G05D23/275
主分类号
G05D23/275
代理机构
代理人
主权项
地址
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