IPC Subgroup
A63B 39/02 Arrangements for maintaining the pressure
Introduced: September 1968
Last revised: January 2006
Full Title
Hollow non-inflatable balls > Arrangements for maintaining the pressure
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- SPORTS; GAMES; AMUSEMENTS
- Subclass:
- APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
1 direct subcode
Child Classifications
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- A63B 39/04 Pricking balls