IPC Subgroup
F01D 5/18 Hollow blades; Heating, heat-insulating, or cooling means on blades
Introduced: September 1968
Last revised: January 2006
Full Title
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members > Blades > Form or construction > Hollow blades; Heating, heat-insulating, or cooling means on blades
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- Subclass:
- NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES