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clearly revealed to the mind or the senses or judgment
apparent
evident
manifest
palpable
plain
(of a bodily tube or passageway) open; affording free passage
a formal document that gives someone the right to be the only one who makes, uses, or sells an invention or product for a limited amount of time
patent of invention
an official document granting a right or privilege
letters patent
to obtain legal ownership and protection for an invention or innovation
make open to sight or notice
to secure exclusive rights to the use, production, or sale of something
