No info on the company, but the design was used by several brands. It is a 2 person, stationary pump vac. The last pic shows the port where the long handle was supposed to go. One person would put a foot on the wood board and pump back and forth, while the other went around with a hose and attachments and did the vacuuming. The hose was I believe cloth, and a very small diameter. Type "Pump Vacuum" in the VL search engine, it will bring up a few results of similar cleaners.
I would gladly buy it off of you if you lived closer, but shipping would be a nightmare for a vac of that size.