I recently acquired a Rino Crono rear derailleur on eBay. It appears to be a very high quality Italian knock-off of a mid-70's Suntour Cyclone. The derailleur has very unusual removable screw pivots and ball-bearing jockey wheels.
The thing is, unless Rino (whoever they were) had a license, the derailleur would clearly violate Suntour's patent on the slant parallelogram design.
Does anyone have any information, history, or experience with this derailleur and/or the company that made it?
Thanks,
Louis Schulman
Tampa, Florida