UPDATE: Glenn shared this pic of restored Mahl Jeep Loader. It’s located near Minneapolis.
ORIGINAL POST FROM 2012:
There appears to be an article about the Mahl Loader in the 1949 Municipal Journal & Engineer, Volume 80, but I can’t read the whole article. Farm Implement News, Volume 70 page 149, from 1949 also has an article, again I can’t read the whole thing.