| 摘要 |
A flat keyway joint member having a multiplicity of sides, each side having a keyway slot for receiving an arcuately disposed elongated key. A predetermined number of joint members and key members are connected together for the assembly of a particularly designed member resulting in a structure completely closed upon itself. This invention may be used to construct geodesic structures and the like for such wide and varied use such as planters, greenhouses, etc. When used in greenhouse construction, the entire greenhouse can be assembled on the ground and simply raised when completed.
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