CPC Class Codes
G01S 19/14
specially adapted for speci...
G01S 5/0027
of actual mobile position, ...
G06Q 20/00
Payment architectures, sche...
G06Q 20/10
specially adapted for elect...
G06Q 20/28
Pre-payment schemes, e.g. "...
G06Q 20/3224
Transactions dependent on l...
G06Q 20/341
Active cards, i.e. cards in...
G06Q 20/3415
Cards acting autonomously a...
G06Q 20/3674
involving authentication
G06Q 20/403
Solvency checks
G06Q 20/4097
using mutual authentication...
G06Q 40/00
Finance; Insurance; Tax str...
G07F 19/20
Automatic teller machines [...
G07F 19/202
Depositing operations withi...
G07F 7/1008
Active credit-cards provide...