I found it interesting that the file date was April 14, 1949, with a patent date of Feb 5 1952. That actual design of the Aero was not locked in until sometime in 1950 (according my research), yet the illustrations look remarkably like the production car. Perhaps the document was updated until the patent was finally granted? The cars began production in 1951, so the patent approval arrived after the cars were already being built.
And who is Byron C. Gould? First time I've ever heard his name and he is listed as the "inventor." The only things I can google about him is a patent in 1905 for Toilet Powder, the name "By-Lo," and two companies: Byron C. Gould, Inc. and M.P. Gould Co. Perhaps he worked for the patent attorney - Harness, Dickey and Pierce (in business since 1921 according to Wikipedia)?
This is the first time I have ever seen this document. Stuff to ponder...