E04C 3/17 with non-parallel upper and lower edges, e.g. roof trusses
Introduced: September 1968
Full Title
Full titles differ between systems:
Structural elongated elements designed for load-supporting > Joists; Girders, trusses, or truss-like structures, e.g. prefabricated; Lintels; Transoms > of wood, e.g. with reinforcements, with tensioning members > with non-parallel upper and lower edges, e.g. roof trusses
Structural elongated elements designed for load-supporting (as building aids E04G) > Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; (E04C3/38 takes precedence; for structures characterised by movable, separable, or collapsible parts E04B1/343; ) > of wood, e.g. with reinforcements, with tensioning members (E04C3/292 takes precedence) > with non-parallel upper and lower edges, e.g. roof trusses
No child classifications to compare. This is a leaf node in both IPC and CPC.