74676223
May 9, 1995
Apr 15, 1997
fluid flow and supply meters, in particular for gas, water, and heat energy; fluidic oscillators; electricity meters; electronics associated with fluid flow and supply meters, namely, remote reading units; correctors for volume, namely, apparatus associated with fluid flow and supply meters for correcting the metered volume of fluid; and prepayment apparatus, namely, token-operated fluid flow and supply meters and electricity meters
Electrical and Scientific Apparatus