J. Hector St. Jean de Crevecoeur's "Letters from an American Farmer"

patented

patent

 adjective

pat·​ent | \ senses 1–3 are ˈpa-tᵊnt  chiefly
protected by a patent made under a patent patent locks a patent coffee maker
cprotected by a trademark or a brand name so as to establish proprietary rights analogous to those conveyed by letters patent or a patent PROPRIETARY patent drugs

 

https://www.merriam-webster.com/dictionary/patent
 

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