While cleaning an old vaporiser if found one that has a patent number... Is it special or noteworthy in any way? I don't want to sell it and I'm not asking if it's valuable, I just want to know if it's worth keeping. It's pretty badly wrecked inside and the jet is elarged so it's unusable. I have a project in mind for it but it would mean destroying it. I thought I'd ask first before I do anything.