DIFF Subgroup
G07B 11/11 for cancelling tickets
Introduced: July 1974
Full Title
Apparatus for validating or cancelling issued tickets > for cancelling tickets
No child classifications to compare. This is a leaf node in both IPC and CPC.
G07B 11/11 Introduced: July 1974
Apparatus for validating or cancelling issued tickets > for cancelling tickets
No child classifications to compare. This is a leaf node in both IPC and CPC.