As I understand it there was more than one "vaping" device invented many years ahead of Ruyan at any time mass developed an e-cigarette, quite possibly the most well known a single becoming the just one from the patent pic under from Herbert Gilbert. It contains a exclusive locking mechanism https://1upshroomchocolatebar300028373.blogacep.com/40348821/how-much-you-need-to-expect-you-ll-pay-for-a-good-buy-dank-vapes-online