A writ forbidding a person to encroach on another's privileges;
as, to sell a book which is only a colourable copy of another author's
book; or to violate a patent; or to perform a play based on a novel
without permission of the novelist; or to publish a book the rights of
which are reserved. Injunctions are of two sorts—temporary and
perpetual. The first is limited “till the coming on of the defendant's
answer”; the latter is based on the merits of the case, and is of
perpetual force.
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