I have a lamp that is one of those great mid-century dainty lamps that looks like a stilnovo (sp?) italian floor lamp: one arm, small elegant metal shade, nicely built, two small prongs on plug. It has no marks, except one of those small oval blue ones inside the shade. It identifies the lamp by its patent numbers (I think that's what they are). One is J-7317. I don't remember what the other is right now, but it starts with an E-. I've looked up the numbers at http://patft.uspto.gov/netahtml/srchnum.htm but nothing comes up. How do I find out who made/designed this lamp by these numbers? Thanks much, Squid