发明授权
- 专利标题： Ice skating rink
- 专利标题（中）： 溜冰场
-
申请号： US821209申请日： 1997-03-20
-
公开(公告)号： US5771706A公开(公告)日： 1998-06-30
- 发明人: Peter P. Lavigne
- 申请人： Peter P. Lavigne
- 专利权人： Lavigne; Peter P.
- 当前专利权人： Lavigne; Peter P.
- 主分类号： A63C19/10
- IPC分类号： A63C19/10 ; E01C13/10 ; F25C3/02
摘要：
A new ice skating rink for easily and conveniently forming a sheet of ice for ice skating. The inventive device includes a plurality of water holding trays disposed on the ground and connected together using connectors. When the water within the trays freezes, a substantially continuous sheet of ice is formed.
公开/授权文献
- US5223238A Method for treating ammonia and urea condensates 公开/授权日：1993-06-29
信息查询
