[CR]Campy no date late NR derailleur ??

(Example: Component Manufacturers)

From: <NortonMarg@aol.com>
Date: Tue, 26 Mar 2002 22:40:16 EST
To: classicrendezvous@bikelist.org
Subject: [CR]Campy no date late NR derailleur ??

I just got a late NR rear derailleur (spring captured on the lower rivet) that doesn't say "Patent" or have a year marked. Does anyone know if this is how some came or has the info been polished off?
Stevan Thomas
Alameda, CA