Patent classifications
G
PHYSICS
Load children
G07
CHECKING-DEVICES
Load children
G07B
TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
Load children
G07B17/00733
Cryptography or similar special procedures in a franking system
Load children Filter patents View analytics View as hierarchy
G07B2017/00959
Cryptographic modules, e.g. a PC encryption board
Load children Filter patents View analytics View as hierarchy
G07B2017/00967
PSD [Postal Security Device] as defined by the USPS [US Postal Service]
Filter patents View analytics View as hierarchy