发明名称 Universal transportable playing field - has top of totally enclosed inflated chamber used as playing surface
摘要 <p>The inflatable playing field is suitable for all kinds of field games. It is simple to erect and may be used on an uneven substructure. When it is folded up the playing field is easy to transport onto site. It consists of a playing field chamber held under excess pressure and closed on all sides, with upper side or roof serving as the playing area. The chamber can be surrounded by a blister- type side chamber, under similar pressure, laterally bounding the playing area. There may also be a substructure chamber underneath. Only one or a few compressors are needed for setting up the unit, quickly and at low cost.</p>
申请公布号 DE3002583(A1) 申请公布日期 1981.07.30
申请号 DE19803002583 申请日期 1980.01.25
申请人 DAMMANN,HANS-JUERGEN 发明人 DAMMANN,HANS-JUERGEN
分类号 E04H3/14;(IPC1-7):04H3/14 主分类号 E04H3/14
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