发明名称 Interfitting wooden logs and log walls
摘要 Wooden log walls are constructed from full or siding logs stacked one above the other. The logs engage each other at connecting portions including an interior loose tongue and groove joint and downwardly curved cylindrical load supporting surfaces extending to the outer sides of the logs.
申请公布号 US6070376(A) 申请公布日期 2000.06.06
申请号 US19980146441 申请日期 1998.09.03
申请人 ASPER, WILLIAM D. 发明人 ASPER, WILLIAM D.
分类号 E04B2/70;(IPC1-7):E04B1/10 主分类号 E04B2/70
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