E04C 3/46 of materials not covered by groups E04C3/40 - E04C3/44; of a combination of two or more materials
Introduced: September 1968
Title
Titles differ between systems:
IPC: of materials not covered by groups; of a combination of two or more materials
CPC: of materials not covered by groups E04C3/40 - E04C3/44; of a combination of two or more materials
Full Title
Full titles differ between systems:
Structural elongated elements designed for load-supporting > Arched girders or portal frames > of materials not covered by groups; of a combination of two or more materials
Structural elongated elements designed for load-supporting (as building aids E04G) > Arched girders or portal frames (straight girders able to be bent E04C3/02; inflatable E04H15/20) > of materials not covered by groups E04C3/40 - E04C3/44; of a combination of two or more materials
No child classifications to compare. This is a leaf node in both IPC and CPC.