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经营范围
发明名称
Improvements in or Relating to Rotary Valves
摘要
申请公布号
GB2082281(A)
申请公布日期
1982.03.03
申请号
GB19810025123
申请日期
1981.08.18
申请人
BUSH & WILTON VALVES LTD
发明人
分类号
F16L23/12;(IPC1-7):F16L23/00
主分类号
F16L23/12
代理机构
代理人
主权项
地址
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