(under subclass 700) Subject matter wherein an electric current is generated or modified by direct application of the pressure to be measured to an electric circuit element and the value of such current is indicative of the pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335.02, for current generating hygrometers or hygrostats.
SEE OR SEARCH CLASS
374, Thermal Measuring and Testing,
163+, for thermometers having electrical or magnetic sensors.