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发明名称
Adjustable back pressure valve
摘要
申请公布号
US3152616(A)
申请公布日期
1964.10.13
申请号
US19630275934
申请日期
1963.04.26
申请人
SUN OIL COMPANY
发明人
HANSEL WILLIAM B.
分类号
F16K15/00
主分类号
F16K15/00
代理机构
代理人
主权项
地址
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