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公开(公告)号：US3557669A
公开(公告)日：1971-01-26
申请号：US3557669D
申请日：1968-06-19
Applicant: MATTHEW ROBERT FENTON
Inventor： FENTON MATTHEW ROBERT
CPC classification number: E01C9/004 , E01C2201/02 , Y02A30/32
Abstract: I disclose, a paving block comprising a plurality of cleat members disclosed in a spaced array, a number of buttressing members engaging said cleat members to reinforce the same, said buttressing members defining openings extending through the thickness of said paving block.
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