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    Grandfather invented Self adjusting vice grips

    Dear Members I have seen questions re: the self adjusting vice grips. Some have said they were invented by The Peterson Tool Co. Not true. They were invented by my grandfather and he received a patent for them Aug. 14, 1951. Patent # 2,564,585. His name was Harold Arthur Shaw. Before that he...
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    Hand Tools Self Adjusting Vice Grips Invented By Granfather

    Dear Members I have seen posts re: the self adjusting vice grips. Some have said Peterson Tools had invented them. Not true. My grandfather invented them in 1948 and received a patent on them Aug. 14, 1951 the patent # is 2,564,585. My cousin has the original prototypes that I hope to get and...
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