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发明名称
Improvements in water flushing valves
摘要
申请公布号
GB429399(A)
申请公布日期
1935.05.29
申请号
GB19340010344
申请日期
1934.04.05
申请人
FRANCIS PARMITER
发明人
分类号
E03D3/04
主分类号
E03D3/04
代理机构
代理人
主权项
地址
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