发明名称 Rain gutter system
摘要 A rain gutter system including plastic rain gutters mounted in place either by a hanger fastened directly to a vertically extending fascia board or by a metal strap which snaps onto the hanger and is mounted to the roof when there is no fascia board or when the fascia board is not vertical.
申请公布号 US4305236(A) 申请公布日期 1981.12.15
申请号 US19800111722 申请日期 1980.01.14
申请人 WILLIAMS, ROBERT F. 发明人 WILLIAMS, ROBERT F.
分类号 E04D13/068;(IPC1-7):E04D13/00 主分类号 E04D13/068
代理机构 代理人
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