Anyone know anything about Wedco Steam Cleaners from the 60's?

I just came across a Wedco Steam Cleaner. It hooks to a garden hose, and to a propane tank. The propane burner is suppose to heat the coils and turn the water into steam. It is missing the propane hose and regulator. I can't seem to find out anything about this machine, or the company. I did see a magazine ad for it on ebay. That was it.