专利名称：Structure of lightweight bars and connector
means therefore
发明人：Stig Ernst Allan Hasselqvist,Anders Victor
Thoreson
申请号：US05/604150申请日：19750813公开号：US04069638A公开日：19780124
摘要：A lightweight bar comprising a hollow, elongated member having channelswithin and extending along its faces, said member being composed of sheet materialformed into the required configuration of the member and having a pair of edges joinedtogether to close the cross section of the member.
申请人：SCANOVATOR AB
代理机构：Finnegan, Henderson, Farabow & Garrett
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