electric motors for machines; electric fans; power operated blowers for moving air, liquids, or solids; centrifugal pumps for moving air, liquids, or solids

electric motors in fans used with machines to cool electronic vacuum tubes

COOLING APPARATUS FOR COOLING ELECTRONIC VACUUM TUBES, THE APPARATUS BEING COMPRISED OF COOLING JACKETS, ELECTRIC SWITCHES, BLOWERS, FANS, AND ELECTRIC MOTORS, AND FOR THE SAID COOLING JACKETS, ELECTRIC SWITCHES, BLOWERS, FANS, AND ELECTRIC MOTORS

electric motors for machines; electric fans; power operated blowers for moving air, liquids, or solids; centrifugal pumps for moving air, liquids, or solids

electronic apparatus and instruments for measuring, controlling and monitoring of temperature, humidity, dew point, carbon monoxide, carbon dioxide, volatile organic compounds, pressure, differential pressure, water activity and flow

electronic controllers, electronic apparatus for measurement and regulation of dampness and temperature