Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

US patent class 62: refrigeration

US patent class 62: refrigeration [detailed description]

Topics include: products produced by cooling, cooling due to chemical or physical processes, cooling apparatus, automatic control of cooling apparatus, cryogenic treatment of gases, storage of solidified or liquefied gas, low-pressure cold trap processes, …

history | excerpt history