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发明名称
Non-clog stock valve
摘要
申请公布号
US2824715(A)
申请公布日期
1958.02.25
申请号
US19560589193
申请日期
1956.06.04
申请人
WILLIAMS JOHN L
发明人
WILLIAMS JOHN L.
分类号
D21G9/00;F16K3/02
主分类号
D21G9/00
代理机构
代理人
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地址
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