发明名称 IMPROVEMENTS RELATING TO A LEVELLING DEVICE
摘要 A device (2) for the levelling of aggregate material comprises a support frame upon which depends a first portion which includes an element (6) which is adjustable to determine the level of aggregate required and a second portion (10) which forms a support for the device on a datum adjacent the aggregate material to be levelled, movement of the device along the datum causing excess aggregate to be pushed away. <IMAGE>
申请公布号 GB9211474(D0) 申请公布日期 1992.07.15
申请号 GB19920011474 申请日期 1992.05.30
申请人 GRIFFITHS, ALAN 发明人
分类号 E01C19/15;E04F21/24 主分类号 E01C19/15
代理机构 代理人
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