P

RECORDING DEVICES-NAMELY, INDUSTRIAL, LABORATORY AND CHEMICAL THERMOMETERS; MERCURY ACTUATED RECORDING THERMOMETERS; MERCURY ACTUATED, REMOTE READING, DIAL THERMOMETERS; MERCURY ACTUATED, RIGID STEM, DIAL THERMOMETERS; MERCURY ACTUATED, REMOTE READING, MAXIMUM AND MINIMUM, DIAL THEMOMETERS; MERCURY ACTUATED, RIGID STEM, MAXIMUM AND MINIMUM, DIAL THERMOMETERS; LIQUID FILLED, DIAL THERMOMETERS; LIQUID FILLED, REMOTE READING, MAXIMUM AND MINIMUM, DIAL THERMOMETERS; LIQUID FILLED, RIGID STEM, MAXIMUM AND MINIMUM DIAL THERMOMETERS; PRESSURE, VOLUME, TIME AND TEMPERATURE INSTRUMENTS; PRESSURE-VOLUME RECORDERS; BATTERY OPERATED CHART DRIVES; AND PRESSURE-VOLUME-TEMPERATURE RECORDERS