Nature of patentable invention, its attributes and definition

書目詳細資料
主要作者:	Hayes, John Edward Rollins, 1873-
格式:	圖書
語言:	English
出版:	Cambridge, Mass. Addison-Wesley Press, Inc. 1948.
版:	"Second edition.".
主題:	Inventions. Patent laws and legislation - United States.