
Fred wrote:Considering GE first got into the traffic light business when they purchased Garrett Morgan's patent, presumably in late 1924/25. http://www.wired.com/science/discoverie ... ntech_1120 We see little or no sign of GE's marketing until around 1928.
I'm afraid it's not that cut and dry - there is some doubt as to whether GE ever actually purchased Mr. Morgan's patent...

And the pic of that Halvorson in the Wired article is from 1924 in Schenectady. Cromwell Halvorson was working for GE when he filed for that signal's patent in 1925.

Additionally, there's some link between GE and Ruleta in the mid 20s. Cast Novalux visors are identical to Ruleta cast visors and the doors are strikingly similar. And some early Ruleta adjustables used GE style cereal bowl reflectors and mounts.