Duncan wrote:
Yes, I know, they all have a "patent" date on them. But what about the ones that just say "patent" with no year? The earliest one of which I can find a pic says "patent 71" But aluminum Nuovo Record rears were introduced in '67, according to multiple campy timelines on-line. So how do you date an NR derailleur that just says "patent" with no date?
Duncan Granger Lancaster, PA
I don't know how to date just the "Patent" derailleurs, but I have a NR that is stamped "Patent 70" on it, if it helps.
Kevin