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经营范围
发明名称
Foldable truss
摘要
A foldable truss having a pair of side frames hinged together by a foldable arm allowing the truss to be collapsed to a smaller width while maintaining the truss length as a constant.
申请公布号
US8028488(B2)
申请公布日期
2011.10.04
申请号
US20080265153
申请日期
2008.11.05
申请人
TYLER TRUSS SYSTEMS, INC.
发明人
DODD MARK C.
分类号
E04H12/18
主分类号
E04H12/18
代理机构
代理人
主权项
地址
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