DIFF Main Group
E01F 3/00 Landing stages for helicopters, e.g. located above buildings (layout of airfields B64F; buildings or like structures for special purposes E04H)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Landing stages for helicopters, e.g. located above buildings
CPC: Landing stages for helicopters, e.g. located above buildings (layout of airfields B64F; buildings or like structures for special purposes E04H)
Full Title
Full titles differ between systems:
IPC:
Landing stages for helicopters, e.g. located above buildings
CPC:
Landing stages for helicopters, e.g. located above buildings (layout of airfields B64F; buildings or like structures for special purposes E04H)
No child classifications to compare. This is a leaf node in both IPC and CPC.