LOL. Your "research" is laughable. Lots of speculation, very little in the way of verifiable fact. Here's a clue. I was born in 1947. I graduated with my PhD (chemistry) in 1973. And I lost a year switching from mechanical engineering to chemistry. So much for your timeline.
I said at the bottom of that post exactly where I got the information. My timeline came from the wiki entry on Italian education, and from the U of Milan website. In Italy, unlike in the US, it is required to have a Master's degree prior to getting a Doctorate. Their timeline appears to be more strict than that for American education. Furthermore, unlike the timeline we would have to believe if that document posted at Nyteknik represented a Doctorate earned by Rossi, your own personal timeline to a Doctorate is actually possible in the Italian model. Rossi's is at least a year too short. (Although, as I already pointed out, I have my doubts as to the authenticity of the letter as posted on the Nyteknik site.)
BTW, much of the U of Milan website can be accessed in English. And the parts that are only in Italian can be translated by Google.
Just because you don't like the results of my on-line research, doesn't mean I was sloppy or incomplete about it. You are free to look at the U of Milan website and find the exact degree that Rossi claims to have earned and post it here, with links, to prove me wrong.