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经营范围
发明名称
Variable polyhedral framework
摘要
A variable polyhedral framework made from at least two joined tetrahedrons hinged at their coincident base edges, which may thereby move easily through and be made rigid in many different configurations.
申请公布号
US4864796(A)
申请公布日期
1989.09.12
申请号
US19880165844
申请日期
1988.03.09
申请人
DIAMOND, GARY
发明人
DIAMOND, GARY
分类号
E04B1/19;E04B1/32
主分类号
E04B1/19
代理机构
代理人
主权项
地址
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