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发明名称
Guide for ball flush valves
摘要
申请公布号
US2549700(A)
申请公布日期
1951.04.17
申请号
US19480037699
申请日期
1948.07.08
申请人
MINTON LESLIE A
发明人
MINTON LESLIE A.
分类号
E03D1/34
主分类号
E03D1/34
代理机构
代理人
主权项
地址
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