Data switching device and method of notifying charge information
Database query cost model optimizer
Decision network based event pricing system in a component...
Delicate metering of computer usage
Delicate metering of computer usage
Device for determining road tolls
Digital postal indicia employing machine and human verification
Digital printing, metering, and recording of other post services
Documenting mail work flow
Dynamic allocation of postal security devices
Dynamic location based cost minimization
Dynamic pricing of items based on category with which the...
Dynamic pricing system