IPC Subgroup
B29D 30/28 Rolling-down or pressing-down the layers in the building process
Introduced: January 1985
Last revised: January 2006
Full Title
Producing pneumatic or solid tyres or parts thereof > Pneumatic tyres or parts thereof > Building tyres > by the flat-tyre method, i.e. building on cylindrical drums > Rolling-down or pressing-down the layers in the building process
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- Subclass:
- PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE