@book{57043,
	author = {Richards, William Evarts and Geler, Oscar Arnold},
	title = {Patents, trade marks, and copyrights, law and practice},
	publisher = {Verlag fur Recht und Gesellschaft},
	year = {1954.},
	address = {Basel},
	edition = {9th ed. of Richards & Geier on patents.},
	note = {First published in 1919 under title: Patents, law and practice.}
}