MICROMAX
HIGH SENSITIVITY HIGH SPEED RECORDERS OF MAGNITUDES OF TEMPERATURE, HUMIDITY, FREQUENCY, SPEED, PRESSURE, CONDUCTIVITY, ION CONCENTRATION, RATE OF FLOW OF FLUIDS, ELECTRIC CURRENT, ELECTRICAL IMPEDANCE, ELECTRICAL POTENTIALS AND VOLTAGES, [ TURBIDITY, PHOTO ELECTRIC EFFECTS, ] AND COMPOSITION OF MIXTURES; RECORDERS CONTROLLED BY A MEMBER DEFLECTING IN RESPONSE TO THE MAGNITUDE OR CHANGES IN MAGNITUDE TO BE RECORDED; HIGH SENSITIVITY ELECTRIC CONTROLLERS AND REGULATORS OF TEMPERATURE, HUMIDITY...
Expired · January 15, 1932 · 71323052 ·