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经营范围
发明名称
Time-controlled valve
摘要
申请公布号
US2556908(A)
申请公布日期
1951.06.12
申请号
US19490090875
申请日期
1949.05.02
申请人
ERIE MANUFACTURING CO.
发明人
ENGHOLDT RICHARD K.
分类号
F16K31/48
主分类号
F16K31/48
代理机构
代理人
主权项
地址
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