发明名称 Apparatus for forming a raised gripping edge on poured aggregate coping
摘要 Method and apparatus for forming a raised gripping surface along the peripheral edge of poured aggregate swimming pool coping. Utilized therein is a form board including a recess to form a first portion of the gripping surface and an aggregate dispensing mule to form a second portion of the gripping surface in a contiguous relation to the first portion. A finishing tool joins both portions into a combined unitized structure.
申请公布号 US6257856(B1) 申请公布日期 2001.07.10
申请号 US20000574316 申请日期 2000.05.19
申请人 STEGMEIER WILLIAM J.;STEGMEIER JOHN M. 发明人 STEGMEIER WILLIAM J.;STEGMEIER JOHN M.
分类号 E04H4/14;(IPC1-7):E04B1/16 主分类号 E04H4/14
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