We've conquered sushi making with machines - http://sushi-master.com/usa/index4.html http://sushi-master.com/usa/index4.html . I don't think sandwiches are all

We've conquered sushi making with machines - http://sushi-master.com/usa/index4.html http://sushi-master.com/usa/index4.html . I don't think sandwiches are all that more difficult. Someone patented one in '73 - http://www.freepatentsonline.com/3762306.html http://www.freepatentsonline.com/3762306.html