I was about to give up, but I think I've got it! It's Land-O-Nod! (From the stuff-o-stuff school of branding, with at least one other local adherent). Google delivered that much, but having figured that out, I've not got all that much more to say. They apparently made mattresses (who woulda thunk) and got a trademark in 1965 for "chiropractic" that resulted in litigation with their rivals and an 8th Cir. opinion in 1983. I don't know what happened to them, but given that I haven't heard of them, they probably didn't last too much longer after that.
You can see what might have been a factory, warehouse or just show room at the intersection of Broadway and Tyler near Central NE.