Law of Chemical Patents (2d Ed.) (2d Ed., Rev. and Enl.). Thomas Published: 1938 Total Pages: Get eBook
Patents for Chemicals, Pharmaceuticals, and Biotechnology Philip W. Grubb Published: 1999 Total Pages: 0 Get eBook
Catalog of Copyright Entries. New Series Library of Congress. Copyright Office Published: 1938 Total Pages: 2094 Get eBook
Catalogue of Copyright Entries Library of Congress. Copyright Office Published: 1938 Total Pages: 1264 Get eBook