Inventions and their management
By: by Alf K. Berle and L. Sprague De Camp.
Contributors: De Camp, L. Sprague 1907-
Edition: 2d ed.
Publisher: International Textbook Co.
Published: 1947
Place of publication: Scranton
Language: eng
Number of pages: 742
Subjects: Patents -- United States; Inventions; Patent laws and legislation -- United States; Trademarks -- United States; Copyright -- United States