You're simply creating a backup image of a single installation and restoring that to multiple machines. Of course, if you don't have Volume License Keys available, you'll need to (re)activate Windows on each laptop with its own key.
Additionally, to handle things like ensuring each laptop on the network has a distinct computer name, it's better if you run SysPrep before deploying the image. If you have Ghost Corporate Edition you can also GhostCast the image to multiple PCs over the network.
There are lots of tutorials available; see here and here for example.