发明名称 |
MARCADOR DE PAVIMENTO EM RELEVO |
摘要 |
A raised retroreflective pavement marker (10) that provides both improved retroreflectivity and longer life has a rigid opaque, synthetic resin body (12) having at its front face septa (14) to which a plastic cube-corner reflector (18) has been bonded to provide a plurality of hermetically sealed cells (16) beneath the reflector. This pavement marker differs from those on the market in that the thickness of its reflector is less than 2 mm, and it has preferably at least 500 cube-corner elements per cm<2>. |
申请公布号 |
BR8903197(A) |
申请公布日期 |
1990.02.13 |
申请号 |
BR19898903197 |
申请日期 |
1989.06.29 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
DAVID C. MAY;THOMAS D. KRECH |
分类号 |
G09F19/22;E01F9/04;E01F9/06;E01F9/08 |
主分类号 |
G09F19/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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