发明名称 Guardrail block
摘要 A guardrail post block made from recycled plastic waste material. The block is of generally rectangular construction whose side faces have large radiused channels formed therealong and large transverse voids extending through the center of the block between the channels. The channels and voids substantially reduce the weight of the block while maintaining required strength.
申请公布号 US6308936(B1) 申请公布日期 2001.10.30
申请号 US19990265361 申请日期 1999.03.10
申请人 ATWOOD WILLIAM D. 发明人 ATWOOD WILLIAM D.
分类号 E01F15/04;(IPC1-7):A01K3/00 主分类号 E01F15/04
代理机构 代理人
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