State laws protect the right of citizens to cast secret ballots. Many states include some type of tracking number for each absentee or mail ballot, often on the envelope. But once the completed ballot ...

We're a small manufacturer that produces hardware systems with unique serial numbers that we track through assembly, QC, a small amount of rental business, and post-sales service (both for RMAs, and ...

Your Android phone’s serial number is a unique identifier that can be used to track your phone if it is lost or stolen. It can also be used to register your phone with your carrier or manufacturer, to ...