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发明名称
Suction control filter system for swimming pools
摘要
A suction control filter system for swimming pools is provided, in which the vacuum filter of the water recirculation system features positive suction backwash of the filter during cleaning.
申请公布号
US4997558(A)
申请公布日期
1991.03.05
申请号
US19880214694
申请日期
1988.07.01
申请人
BAKER, WILLIAM H.
发明人
BAKER, WILLIAM H.
分类号
E04H4/12
主分类号
E04H4/12
代理机构
代理人
主权项
地址
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