发明名称 |
Three-dimensional folded chain structures |
摘要 |
Structures which have a wide variety of applications including that of educational toys are formed of chains of hinged three-dimensional units such as tetrahedra. The chains may be formed by folding a sheet of material.
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申请公布号 |
US4142321(A) |
申请公布日期 |
1979.03.06 |
申请号 |
US19760733221 |
申请日期 |
1976.10.18 |
申请人 |
COPPA, ANTHONY P. |
发明人 |
COPPA, ANTHONY P. |
分类号 |
A63H33/16;(IPC1-7):A63H33/16 |
主分类号 |
A63H33/16 |
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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