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发明名称
Improvements in or relating to stop valves
摘要
申请公布号
GB910339(A)
申请公布日期
1962.11.14
申请号
GB19590030714
申请日期
1959.09.09
申请人
GEORGE HAROLD PEARSON
发明人
分类号
F16K31/122
主分类号
F16K31/122
代理机构
代理人
主权项
地址
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