Front cover image for Patent laws and practice of obtaining letters patent for invention : in the United States and foreign countries, including copy-right and trademark laws

Patent laws and practice of obtaining letters patent for invention : in the United States and foreign countries, including copy-right and trademark laws

Print Book, English, 1871
W.H. & O.H. Morrison, Washington, 1871
xi, 708 pages ; 21 cm
6729905
Includes index
Spine title: Whitman's patent laws