HUMAN-TECH

direct current generators, alternating current motors for machines, electric washing machines, electric can openers, electric dishwashers, and electric mixers

electric vacuum cleaners, automatic telegraphs, telephones, radio receivers, television receivers, portable telephones, car telephones, record players, tape players, video tape recorders, video disc players, compact disc players, video tapes, amplifiers, headphones, speakers, microphones, computers, electronic calculators, electric condensers, cathode ray tubes, discharge tubes, transistors, diodes, electric automatic vending machines, electronic photocopying machines, electric flat irons

electric dish dryers, electric coffee pots, ultra-sonic humidifiers, microwave ovens, electric refrigerators, air conditioners, electric stoves, electric rice cookers, electric toasters, electric fans, hand held electric hair dryers, and hot water heaters