发明名称 Three dimensional educational toy model subdivision
摘要 A three dimensional toy having a base member showing a housing development with structural profile members mounted thereon which are secured by profile locking elements for constructing elevations of roadways, lots and surrounding terrain. The profile members and locking elements also serve as retaining walls for soil which, when shaped to conform to the contours of the profile members and locking elements and provided with living plants defines the topography of a living housing development.
申请公布号 US4245400(A) 申请公布日期 1981.01.20
申请号 US19780952152 申请日期 1978.10.17
申请人 JOHNSON, BURTON R. 发明人 JOHNSON, BURTON R.
分类号 A63F9/14;G09B25/06;(IPC1-7):G09B19/00 主分类号 A63F9/14
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