SANBORN

AMPLIFIERS, INCLUDING ALTERNATING-CURRENT, DIRECT-CURRENT, CARRIER, STRAIN-GAGE AND SERVO TYPES; ELECTRIC-SIGNAL ELECTRONIC RECORDERS AND RECORDING SYSTEMS OF BOTH THE SINGLE AND MULTI-CHANNEL TYPES; MICROPHONES; AND RECORDING-PAPER TAKE-UP MOTORS AND ROLLS

GALVANOMETERS; ELECTRIC TIMING DEVICES FOR GENERATING CALIBRATION MARKS; AND RECORDING PAPER NAMELY, PHOTOGRAPHIC SENSITIZED PAPER

MOUNTING CARDS, FOLDERS AND FILING ENVELOPES, AND PLASTIC COATED HEATSENSITIVE PAPER

ELECTROCARDIOGRAPHS; BALLISTICCARDIOGRAPHS; ELECTROMANOMETERS; METABULATORS INCLUDING MOUTHPIECES, NOSE CLIPS, BREATHING TUBES, THERMOMETERS, CARBON-DIOXIDE CONTAINERS, CHARTS, SCALES AND SLIDE-RULE CALCULATORS THEREFOR; ELECTRIC-SIGNAL ELECTRONIC RECORDERS AND RECORDING SYSTEMS OF BOTH THE SINGLE AND MULTI-CHANNEL TYPES FOR RECORDING PHYSIOLOGICAL AND RELATED PHENOMENA, AND WRITING ARMS AND TYLI THEREFOR; ELECTRODES AND STRAPS AND PASTE FOR USE WITH THE FOREGOING; AND ELECTROPHRENIC RESPIRATORS