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经营范围
发明名称
Improvements in or relating to pressure reducing valves
摘要
申请公布号
GB692653(A)
申请公布日期
1953.06.10
申请号
GB19510004609
申请日期
1951.02.26
申请人
THE BRITISH OXYGEN COMPANY LIMITED;GEOFFREY DONALD BLACK;JOHN WALSH
发明人
分类号
G05D16/06
主分类号
G05D16/06
代理机构
代理人
主权项
地址
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