Remote counting system in which the consumption values noted by one or more electricity counters are transmitted to a remote counter by means of periodically transmitted electrical pulses controlled by the counting mechanism
GB786140A
Improvements in and relating to devices for transmitting indications of a measuring apparatus to a distance
DE1045286B
Device for remote display of the consumption measured by a gas meter by means of electrical impulses transmitted to a receiving device via a conductor
GB780544A
Thermostat for regulating gas flow with flexible transmission pipe
