Patents throughout the world
By: by Wm. Wallace White, Wallace White.
Contributors: White, Wallace, 1892-1933, joint author.; Ravenscroft, Byfleet Gwillym, 1890- ed.
Edition: 2d ed. by Byfleet G. Ravenscroft.
Publisher: Trade Activities, inc.
Published: 1928
Place of publication: New York, N.Y
Language: eng
Subjects: Patents