A meter register includes a sealed register body having a face portion and a body that are coupled to form an internal cavity. The internal cavity includes a rotatble member, a power source and a visual display. A microprocessor is included that coacts with the power source and the rotatable member to...http://www.google.fr/patents/US7343795?utm_source=gb-gplus-shareBrevet US7343795 - Meter register and meter register tampering detector
Meter register and meter register tampering detector
