As I understand it there was multiple "vaping" device invented a long time prior to Ruyan at any time mass manufactured an e-cigarette, one of the most popular a single becoming the a person from the patent pic beneath from Herbert Gilbert. For those who really feel that PG is https://cucumberjuulpods17148.blogdal.com/35451658/rumored-buzz-on-where-to-buy-geek-bar-vape-online