Hi Travis, yes they were very cool and I have to say that SEBO was the real innovator in commercial-professional upright cleaning for large surfaces...these vacs have all he features that in fact set a new standard. large powernozzles with easy to replace brush strip, low noise, good suction, good filtration(better than any other upright cleaner at that time)and the first models could be also used as barefloor cleaners: there was a surface nozzle which could be connected in place of the power nozzle. The later version had a stiffer connection, but for long time both version were produced; early models didn't feature carpet height adjustment in the narrower version also, introduced as a standard on the later models.
I know Lindhaus very well because my mother is from padua, where the factory is, and I know many people who work there and I had the opportunity to know Mr Massaro, the owner and director of Lindhaus.
But they came later.I don't like them as much as Sebos, though they are VERY good in terms of material quality and overall quality.
their range is really wide and through the years they had their uprights sold olso by private labels like TASKI, NILFISK-ADVANCE and HAKO, and others. I own one of the earlies lindhaus for household use, and it was incredible because they had used a BY-PASS motor on the earliest series,so the air vacuumed in, was expelled separate from the air cooling the motor, which had a different passge. Butthey were a little bit noisy.Lindhaus introduced the a new motor, flow through, which is in use also today, allowing the modification of the motor hood for Hepa filtration feature.
Another interesting thing of lindhaus in that they feature a xtra wide powernozzle, model RX 50, that I tried and felt a little bit inconvenient because of the position of the upright unit on the very wide pn.
I really prefer T shaped pns;-)
tommy