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经营范围
发明名称
Waste flushing mechanism, including a backflow preventer
摘要
申请公布号
US2547708(A)
申请公布日期
1951.04.03
申请号
US19460698528
申请日期
1946.09.21
申请人
LOCKLEY MACHINE COMPANY
发明人
KREINER ANTHONY J.
分类号
E03C1/266
主分类号
E03C1/266
代理机构
代理人
主权项
地址
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