IPC Subgroup
F28F 1/34 and extending obliquely
Introduced: September 1968
Last revised: January 2006
Full Title
Tubular elements; Assemblies of tubular elements > Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses > the means being only outside the tubular element > and extending obliquely
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
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open
- F28F 1/36 the means being helically-wound fins or wire spirals