IPC Subgroup
F28F 11/06 using automatic tube-obturating appliances
Introduced: September 1968
Last revised: January 2006
Full Title
Arrangements for sealing leaky tubes or conduits > using automatic tube-obturating appliances
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEAT EXCHANGE IN GENERAL
- Subclass:
- DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION