As I understand it there was multiple "vaping" device invented decades just before Ruyan ever mass manufactured an e-cigarette, one of the most popular one particular getting the 1 within the patent pic beneath from Herbert Gilbert. It contains a special locking system where you pull the change and twist https://fernandobcsmi.rimmablog.com/34134129/5-simple-statements-about-can-you-buy-raz-vapes-online-explained