IPC Subgroup
F01D 1/38 of the screw type
Introduced: January 1990
Last revised: January 2006
Full Title
Non-positive-displacement machines or engines, e.g. steam turbines > characterised by non-bladed rotor, e.g. with drilled holes > of the screw type
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