The same year, Dowst made an agreement with the Mack trucks company for reproducting their models in a smaller scale, later to be joined by a series of small 1934 Ford models using a single casting.
Dowst successfully sued the Erie Company and obtained royalties from others that had copied the patent.
I just did that $6 Memory and Cognition Lab Word Pair Learning Study and i recommend others to try to do it.
Took me 40 mins to memorize the different words and the followup is a $12 study that only takes 15 mins.
The tractor and trailers do not have "duallies" wheels, but another version with a single trailer did.