|
US2009265123A1
|
|
Back-up data delivery device for an unpowered utility meter and method of using the same
|
|
US2003085842A1
|
|
Wireless communication device for electric meter and method of manufacture thereof
|
|
US6181294B1
|
|
Antenna for electric meter and method of manufacture thereof
|
|
US5122735A
|
|
Digital power metering
|
|
US4884021A
|
|
Digital power metering
|
|
US4868893A
|
|
System for remote, interactive communication with a metal under ambient sunlight conditions
|
|
CA1290400C
|
|
Digital power metering
|
|
US4744004A
|
|
Electricity meter with solid-state circuits
|
|
US4615009A
|
|
Electronic energy and power monitoring apparatus
|
|
US4408283A
|
|
Time division multiplier transducer with digitally derived phase shift adjustment for reactive power and energy measurement
|
|
US4356446A
|
|
Time division multiplier transducer with selective phase shift
|
