The Franklin Institute and the American
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Article
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1940
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Elsevier Science
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English
โ 153 KB
During the Seventeenth Century it was customary for the Colonies to grant its citizens protection for discoveries and inventions. The first patent of which there is any record was issued by the colony of Massachusetts Bay, to Samuel Winslow, on April 2, I64I, for the manufacture of salt. It was not