FWIW, Here's my 2 cents worth w.r.t. the Campy Clones. As far as I know Marino at Pantera East had Coddington spin up the original Campy Clones, and Pantera East had exclusive rights to the design. I believe there were three iterations of the wheel.
The first version in the area where the two sausage openings are was flat and unpolished .
The second version (that I purchased in 2002) adjusted the proportions and added the angle and polished the area where the two sausage openings are. The OEM cap is secured with the spring clip as the stock wheels.
The third and last version (2005) had a more aggressive look with deeper cuts and angles.
There's a brief description of the Pantera East Coddington wheels on the Pantera Place Web site. http://www.panteraplace.com/page175.htm
All others selling Campy Clones had to have the design changed enough as to not infringe on the exclusive rights of the Pantera East Coddington Campy Clone. That being said, Pantera East is no longer in business. Therefore, those rights probably no longer apply. Regardless, I do notice when a Campy Clone is not a Pantera East Campy Clone.
That's my story, and I'm sticking to it...
Ron