letters patent(redirected from Patent of nobility)
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A document granting a patent for an invention.
(Law) See patent6
an instrument issued by a government conferring a right upon a patentee, esp. an exclusive right to make and sell an invention.
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|Noun||1.||letters patent - an official document granting a right or privilege|
legal document, legal instrument, official document, instrument - (law) a document that states some contractual relationship or grants some right