发明名称 Lightweight paving slab of concrete or artificial stone - with underside cut out to form one or more hollows to fit cruciform pattern laying strips
摘要 <p>The paving slab, made of concrete, artificial stone or similar, as laid on paths, garage forecourts, courtyards and elsewhere, is of reduced weight so as to be more easily handled and transported. This effect is achieved by incorporating one or more cutouts (6) to form a hollow space, at a small interval from the peripheral edges of the slab (5), in its underside (2), leaving an edge laying strip. There may be a number of such hollows, leaving layout strips arranged in a cruciform pattern (7), pref. narrower than the edge ones (4). The cutout depth can comprise between half and two-thirds of the thickness of the slab. Material and costs are saved, and with slabs of suitable size two can be carried at a time to or from transport vehicles.</p>
申请公布号 DE2616041(A1) 申请公布日期 1977.10.13
申请号 DE19762616041 申请日期 1976.04.12
申请人 BAND,ERNST 发明人 BAND,ERNST
分类号 E01C5/06;(IPC1-7):01C5/06 主分类号 E01C5/06
代理机构 代理人
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