发明名称 Method for improving the visibility of road traffic signs and road traffic sign
摘要 The invention relates to a method for widening the angle of visibility of road signs to an angle of more than 180 degrees. In applications according to the invention the angle of visibility is widened by adding further symbols to the road traffic sign, by applying designations to the support post of the road traffic sign or by applying the road traffic sign to the surface of a three-dimensional part. <IMAGE>
申请公布号 FI104506(B) 申请公布日期 2000.02.15
申请号 FI19980001953 申请日期 1998.09.11
申请人 A. RANTA-YLITALO KY,, 发明人 RANTA-YLITALO,,ARTO
分类号 E01F9/60;E01F 主分类号 E01F9/60
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