72210204
Jan 19, 1965
May 20, 1969
ELECTRICAL SERVOMECHANISMS AND SERVOMECHANISH, COMPONENTS, INCLUDING AMPLIFIERS, PHASE DETECTORS [ , POTENTIOMETERS ] AND GEARBOXES, ELECTRICAL POWER SUPPLIES; [ AND SIGNALING EQUIPMENT FOR TRAFFIC CONTROL INCLUDING VEHICLE PRESENCE DETECTORS; ] AND PARTS THEREOF
Housewares and Glass