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发明名称
Self-cleaning valve
摘要
申请公布号
US2881783(A)
申请公布日期
1959.04.14
申请号
US19560597206
申请日期
1956.07.11
申请人
ESSO RESEARCH AND ENGINEERING COMPANY
发明人
ANDREWS HOWARD S.
分类号
F16K25/02
主分类号
F16K25/02
代理机构
代理人
主权项
地址
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