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发明名称
Improvements in or relating to valves
摘要
申请公布号
GB655711(A)
申请公布日期
1951.08.01
申请号
GB19480027412
申请日期
1948.10.21
申请人
JOHN EDWARD COLEMAN
发明人
分类号
F16K15/06;F16K17/04
主分类号
F16K15/06
代理机构
代理人
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