Can anyone ID the brand of this "Model 529"

[ic-racer]

I have had this radio since about 1972. At the time "antique" radios were battery powered. This one was just an old piece of junk. Looks like I cut the power cord and removed the power transfomer (I suspect for safety reasons.) As I recall the power transformer looked faulty, but I can't remember. Maybe I took the transformer for another project.

Now that I look at the radio, it seems like it might have some promise if I fixed it up.

Anyway, there is a label describing the layout and indicating numerous patents, but nowhere is a manufacturer's name found. It just says model number 529.

Does this look familiar to anyone??