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经营范围
发明名称
A BARRIER
摘要
Abstract A manhole barrier, including: a body including an open ended ring; a grille within the open ended ring; and an adjustment mechanism configured to facilitate expansion or contraction of the body.
申请公布号
AU2013237755(A1)
申请公布日期
2014.05.01
申请号
AU20130237755
申请日期
2013.10.08
申请人
MCONIE, ROSS GARY
发明人
MCONIE, ROSS GARY
分类号
E02D29/14;E02D29/00;E02D29/12
主分类号
E02D29/14
代理机构
代理人
主权项
地址
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