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Keywords: Reddy Kilowatt US patent picture 1933.jpg Uploaded with en wp UW marker 2014 02 24 This rendering of the corporate symbol Reddy Kilowatt is excepted from the registered trade-mark granted to Ashton B Collins Sr by the U S Patent Office on March 28 1933 http //blog invention smithsonian org/tag/trademarks/ sthash STk54BxG dpuf 1933-03-28 U S Patent Office PD-USGov Uncategorized 2014 February 24 |