Nature of patentable invention, its attributes and definition

Détails bibliographiques
Auteur principal:	Hayes, John Edward Rollins, 1873-
Format:	Livre
Langue:	English
Publié:	Cambridge, Mass. Addison-Wesley Press, Inc. 1948.
Édition:	"Second edition.".
Sujets:	Inventions. Patent laws and legislation - United States.