26 ELECTRICAL MEASURING AND CONTROL INSTRUMENTS-NAMELY, INDICATORS AND INDICATING CONTROLLERS, OF THE DEFLECTION TYPE FOR INDICATING THE MAGNITUDE OF PHYSICAL QUANTITIES SUCH AS TEMPERATURE, PRESSURE, FLOW, STRESS, ELECTRICAL CHARACTERISTICS, SMOKE DENSITY, ETC. THAT MAY BE REPRESENTED BY VARYING ELECTRICAL SIGNALS AND FOR CONTROL OF SAID MAGNITUDES
Trademark: 72248817
