IPC Subgroup
G07B 11/11 for cancelling tickets
Introduced: July 1974
Last revised: January 2006
Full Title
Apparatus for validating or cancelling issued tickets > for cancelling tickets
Classification Context
- Section:
- PHYSICS
- Class:
- CHECKING-DEVICES
- Subclass:
- TICKET-ISSUING APPARATUS; TAXIMETERS; ARRANGEMENTS OR APPARATUS FOR COLLECTING FARES, TOLLS OR ENTRANCE FEES AT ONE OR MORE CONTROL POINTS; FRANKING APPARATUS