IPC Subgroup
B32B 11/08 of metal
Introduced: September 1968
Last revised: January 2006
Full Title
Layered products essentially comprising bituminous or tarry substances > comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance > of metal
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- LAYERED PRODUCTS
- Subclass:
- LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM