G07B2017/0079 - CPC Classification

Franking apparatus; Cryptography or similar special procedures in a franking system Time-dependency

• G07B2017/00798 » {using timestamps, i.e. recording time in message} 4
• G07B2017/00806 » {Limited validity time} 2
• G07B2017/00814 » {Continuous communication, e.g. answer within a limited time period} 2

Recent Application in this class: