Correct, but like German autos, some design features seem to be common to German manufactures rather than particular to one manufacturer. German customers have different expectations of the products they buy, their durability, ergonomics etc., than many other nations do. German cars all have a certain feel to them born of the necessity of being controllable running at high speeds most other nations do not permit. It appears the German housewife has similar expectations of her vacuum, lol. High performance machines! Just be glad we have that albeit expensive alternative to the mass market Chinese made, um, "stuff" populating most big box stores display floors.
I was not aware that Windsor bought vacuums from Sebo. Have to research their history a bit more.