ELECTRIC AIR VENTILATING UNITS COMPRISING

Brand Owner Address Description
COOK LOREN COOK COMPANY 2015 E. Dale Springfield MO 65803 ELECTRIC AIR VENTILATING UNITS COMPRISING BLOWERS AND FANS FOR COMMERCIAL AND INDUSTRIAL USE SOLD THROUGH MANUFACTURES' REPRESENTATIVE.;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. Herein disclosed is a wireless headphone apparatus, comprising: a plurality of light signal receiving units each for receiving a light signal to produce an electric signal having a signal level; a plurality of light signal limiting units respectively connected with the plurality of light signal receiving units in one to one relationship, each of the light signal limiting units operative to allow only an electric signal having a signal level lower than a predetermined threshold value to pass therethrough and delete an electric signal having a signal level equal to or greater than the predetermined threshold value; a signal synthesizing unit for synthesizing the electric signals passed through the light signal limiting units to produce a synthesized electric signal; and speaker means for outputting a sound in response to the synthesized electric signal.