This post is locked. You won't be able to comment. 52 posted 3 years ago by ghost_of_aswartz 3 years ago by ghost_of_aswartz +60 / -8 38 comments share 38 comments share save hide report block hide replies
Not sure if this is in your list, not gone through it all yet, but worth a read..
https://patents.google.com/patent/US20090032214