Nice background piece.
However , for clarity , it needs to be mentioned that FESTO and Festool /TTs are not interchangeable when discusing power tools.
The companies were divide up around the turn of the century to various family members and are completely separate entities now. FESTO is a pneumatics and industrial automation company . TTS principally makes handheld electric tools, vacuums, storage solutions via Tanos and lately is into PUR molding processes.
A fair few of my power tools, systainers etc. are marked/labelled as "Festo". Only those made recently have been called "Festool". Ergo, either name has legitimacy when describing TT's power tool range. Many of TTs tools are in effect merely rebadged versions of their original Narex, Protool, Kraenzle & Holz Her "originals" too. I have/ have had a few of these as well: drill, vac, belt sanders. They still retain the original company's DNA & design within, despite new labelling. I find it vaguely insulting to those original designers who made these great tools to attribute these products to the new owners.