I have the scans of the retrospective article in Bicycle Guide that someone posted on the Internet; sadly I don't remember whom I got them from. The article is written by John Derven; it's from the Dec.'89 issue.
It says Teledyne production began in mid-'74, and that Speedwell and "West Germany's Flema" were already in production. No indication of which of those two was first.
Interestingly, the main guy behind development of the Teledyne had Albert Eisentraut make a prototype Ti frame in '71, which they touted as the world's first, but Derven says Phillips Co. had displayed one at the '56 London Cycle Show! The '71 Eisentraut was ridden though, and there's no evidence that the Phillips was rideable.
I put the scans I have up at http://bulgier.net/
Mark Bulgier
Seattle, Wa USA