发明名称 |
Machine and method for preparing a concrete surface for coating |
摘要 |
This invention is concerned with a machine and method for automatically removing a curing film or membrane from a concrete floor surface and etching that surface in preparation for applying a surface coating and doing this in less time than has heretofore been required for such floor preparation.
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申请公布号 |
US4822431(A) |
申请公布日期 |
1989.04.18 |
申请号 |
US19860827956 |
申请日期 |
1986.02.10 |
申请人 |
TENNANT COMPANY |
发明人 |
BRICHER, CHARLES W.;SNETTING, MARK E. |
分类号 |
E01C23/03;E01H1/10;E04F21/24 |
主分类号 |
E01C23/03 |
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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