IPC Subgroup
F28G 15/1 Masks for delimiting area to be cleaned
Introduced: September 1968
Last revised: January 2006
Full Title
Details > Masks for delimiting area to be cleaned
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEAT EXCHANGE IN GENERAL
- Subclass:
- CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS