IPC Main Group
B29L 17/00 Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
Introduced: January 1985
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- Subclass:
- INDEXING SCHEME ASSOCIATED WITH SUBCLASS , RELATING TO PARTICULAR ARTICLES