Major General James G. Blunt

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Perris v. Hexamer, 99 U.S. 674 (1879), was a United States Supreme Court case in which the Court held a map-maker has no more an exclusive right to use the form of the characters they employ to express their ideas on a map than they have to use the typeface they use for text. Suitably, one could not use copyright to restrict the use of map symbols.[1][2][3][4]

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