study of patents on petroleum cracking
Subtitle: with special reference to their present status
By: by David McKinight, jr. ...
Series: University of Texas publication -- no. 3831: August 15, 1938
Publisher: The University
Published: 1938
Place of publication: Austin, Tex
Language: eng
Number of pages: 627
Subjects: Petroleum industry and trade -- Patents
Notes: Photoprinted.