发明名称 CONCRETE FORM SURFACING
摘要 There is disclosed herein a method for preparation and construction of concrete pouring forms in which the surfaces and edges of the form members are treated with several coats of a resinous material exhibiting particularly advantageous mechanical and chemical properties. A preferred material is a moisture cured urethane prepolymer solution.
申请公布号 US3650795(A) 申请公布日期 1972.03.21
申请号 USD3650795 申请日期 1969.01.27
申请人 JOHN H. WILLINGHAM 发明人 JOHN H. WILLINGHAM
分类号 B28B7/36;B28B7/38;(IPC1-7):B29C1/04 主分类号 B28B7/36
代理机构 代理人
主权项
地址