99 () 🧐 Research Wanted 🤔 posted 2 years ago by BigMikesSaggyBaggins 2 years ago by BigMikesSaggyBaggins +99 / -0 21 comments share 21 comments share save hide report block hide replies
cemix patent
heres your rabbit hole jump in .... https://patents.google.com/patent/US4203674A/en