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发明名称
Improvements in and relating to relief valves
摘要
申请公布号
GB563672(A)
申请公布日期
1944.08.24
申请号
GB19430005180
申请日期
1943.03.31
申请人
WALTER ERNST
发明人
分类号
F16K17/04
主分类号
F16K17/04
代理机构
代理人
主权项
地址
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