Fulton, David. A Practical Treatise on Patents, Trade Marks and Designs, with a Digest of Colonial and Foreign Patent Laws: The text of the patents, designs, and trade marks acts, 1883 to 1888. New York: BookSurge Publishing, 2002.

Fulton, David. A Practical Treatise on Patents, Trade Marks and Designs, with a Digest of Colonial and Foreign Patent Laws: The text of the patents, designs, and trade marks acts, 1883 to 1888. New York: BookSurge Publishing, 2002.