圖書標籤:
发表于2024-11-25
Patents and How to Get One pdf epub mobi txt 電子書 下載 2024
Handy official guide explains functions of the Patent and Trademark Office, describes a patent, defines such terms as "patent pending" and "patent applied for," discusses patent law, explains what can be patented and the process of registering patents, describes filing fees, and much else -- all in simple, easy-to-understand language.
評分
評分
評分
評分
Patents and How to Get One pdf epub mobi txt 電子書 下載 2024