I have what i believe and the trademark emblem,patent tag and number tag say is a "Sreit slumber chair" My problem is that i can only read the last 3 numbers of patent sticker.And after going through streits early patent apps with drawings they dont match with my chair.There is one app drawing and number that is not available.Also a couple of the pat. drawings show similar engineering but also not the same.I've scanned hundreds of streits images online and can not find that mechanism anywhere.Could this be a prototype or a special project or a turn of the century knockoff!!? Something in my gut says theres something here!The design is so simple its brilliant!!!