@book{180566,
	author = {Francis, William H. and Collins, Robert C.},
	title = {Cases and materials on patent law},
	publisher = {West Pub. Co.},
	year = {1995.},
	series = {American casebook series},
	address = {St. Paul, Minn.},
	edition = {4th ed.},
	note = {Includes index.}
}