Abstract: A lightweight bar comprising a hollow, elongated member having channels within and extending along its faces, said member being composed of sheet material formed into the required configuration of the member and having a pair of edges joined together to close the cross section of the member.
Type:
Grant
Filed:
August 13, 1975
Date of Patent:
January 24, 1978
Assignee:
Scanovator AB
Inventors:
Stig Ernst Allan Hasselqvist, Anders Victor Thoreson