Patent fundamentals
Subtitle: a textbook for inventors, executives and students ...
By: by Adelbert Schapp ...
Edition: 1st ed.
Publisher: The Industrial press; Machinery publishing co., ltd.
Published: 1939
Place of publication: New York; London
Language: eng
Number of pages: 176
Subjects: Patents -- United States.; Patent laws and legislation -- United States.; Trademarks -- United States.; Copyright -- United States.