| 发明名称 |
PARALLELOGRAM STRUCTURE |
| 摘要 |
<p>A portable structure which consists of a plurality of I beams placed side by side and hinged together in a parallelogram fashion such that adjacent I beams may be folded together.</p> |
| 申请公布号 |
CA1073165(A) |
申请公布日期 |
1980.03.11 |
| 申请号 |
CA19770277336 |
申请日期 |
1977.04.29 |
| 申请人 |
SUN OIL COMPANY LIMITED |
发明人 |
MACY, ROBERT L.;ZUPANICK, JOSEPH E. |
| 分类号 |
E01D15/12;E04B5/14;(IPC1-7):01D15/00 |
主分类号 |
E01D15/12 |
| 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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