1. See, for example, J. W. Wrightet al., eds.The New York Times Guide to Essential Knowledge: A Desk Reference for the Curious Mind, 3rd ed. St. Martin’s Press, New York (2011), p. 1233.
2. See, for example, P. Groves, A Dictionary of Intellectual Property Law, Edward Elgar, Northampton, MA (2011), p. 314.
3. A Dictionary of Intellectual Property Law
4. See B. W. Bugbee,Genesis of American Patent and Copyright Law, Public Affairs Press, Washington, DC (1967), p. 24.