发明名称 Gutter strainer
摘要 A gutter strainer having a central grid portion defining a plurality of openings for impeding passage of debris while allowing passage of water is provided for vertical mounting at any desired position within a gutter of the type having inturned flanges extending continuously along its upper edges.
申请公布号 US4272370(A) 申请公布日期 1981.06.09
申请号 US19800137772 申请日期 1980.04.07
申请人 BIRD & SON, INC. 发明人 CUNNING, JOSEPH M.
分类号 E04D13/076;(IPC1-7):B01D35/02 主分类号 E04D13/076
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