As I understand it there was more than one "vaping" device invented many years right before Ruyan at any time mass made an e-cigarette, the most well known 1 being the one during the patent pic under from Herbert Gilbert. Many of the others, from drops of spittle, to hair, https://deanrrnid.mpeblog.com/61633929/the-best-side-of-where-to-buy-vapes-online-at-18