The Infringer-who steals gags and points bodily-can be pursued and punished under the copyright law, but the chooser is a kind of sneak thief who works gags and points around to escape taking criminal chances, making his material just enough different to evade the law.
"Writing for Vaudeville"
Brett Page
If the right thus granted is invaded, apply to a Federal Court and the Infringer will be enjoined and required to settle in damages."
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin
The delay was translated as meaning lack of confidence; and the alert Infringer grew strong in courage and capital.
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin