Keiper, F. (1924). Pioneer inventions and pioneer patents: A lecture on patent law delivered to the senior engineering students of Purdue University of the classes of '22, '23 and '24 and previous classes (2nd ed.). Pioneer Pub. Co.
Chicago Style (17th ed.) CitationKeiper, Frank. Pioneer Inventions and Pioneer Patents: A Lecture on Patent Law Delivered to the Senior Engineering Students of Purdue University of the Classes of '22, '23 and '24 and Previous Classes. 2nd ed. Rochester, N.Y: Pioneer Pub. Co, 1924.
MLA (9th ed.) CitationKeiper, Frank. Pioneer Inventions and Pioneer Patents: A Lecture on Patent Law Delivered to the Senior Engineering Students of Purdue University of the Classes of '22, '23 and '24 and Previous Classes. 2nd ed. Pioneer Pub. Co, 1924.
Warning: These citations may not always be 100% accurate.