A device for recording time of energy use for use with standard electric meters having a rotatable disc. The device includes a housing securable within a meter below the disc. A series of mounting holes are formed in the housing for mounting the device within the meter. The holes are arranged such that...http://www.google.fr/patents/US4783623?utm_source=gb-gplus-shareBrevet US4783623 - Device for use with a utility meter for recording time of energy use
Device for use with a utility meter for recording time of energy use
