System and method for secured metering of mail

System and method for selecting and accounting for...

System and method for tracking mailpieces

System and method for verifying digital postal marks

System and method of processing mail with multiple statement...

System and method of verifying cryptographic postage...

System for accounting for postage expended by a postage...

System for accounting for postage expended by a postage...

System for accounting for postage expended by a postage...

System for correcting errors in pulse data

System for customizing and ordering personalized postage stamps

System for detecting mail pieces with duplicate indicia

System for detecting tampering with a postage value...

System for detecting unaccounted for printing in a value...

System for detecting unaccounted for printing in a value...

System for franking mail

System for indicating the balance of stored value

System for issuing tickets

System for mailing and collecting items

System for portable franking services