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经营范围
发明名称
Bottom loading valve mechanism
摘要
申请公布号
US3047009(A)
申请公布日期
1962.07.31
申请号
US19590829262
申请日期
1959.07.24
申请人
THE PURE OIL COMPANY
发明人
HUNTER WESLEY L.
分类号
F16K21/18
主分类号
F16K21/18
代理机构
代理人
主权项
地址
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