发明名称 |
Set of paving stones, particularly set of concrete paving stones |
摘要 |
A paving stone set includes a square paving-stone, a larger rectangular paving-stone and a smaller rectangular paving-stone. Each of the paving stones has generally planar top and bottom surfaces and generally planar side walls, with a clothoid shaped surface being formed on two corners of each paving-stone. The radius of curvature of each clothoid shaped surface may be different from that of the other clothoid shaped surfaces on each paving-stone. The top surface may have a different color and texture than the bottom surface. The paving-stones may be irregularly broken surfaces.
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申请公布号 |
US4792257(A) |
申请公布日期 |
1988.12.20 |
申请号 |
US19870095190 |
申请日期 |
1987.09.11 |
申请人 |
HANS RINNINGER U. SOHN GMBH U. CO. |
发明人 |
RINNINGER, HANS |
分类号 |
E01C5/06;(IPC1-7):E01C5/00 |
主分类号 |
E01C5/06 |
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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