Royal started early
Royal's metal Power Teams were great canisters! Those were produced from the 70's all the way to the very late 90's, I believe '98 or '99 was when they were officially discontinued? And Dirt Devil of course had the little Power Pak in many different variations. For Bissell, the only power nozzle canister that comes to mind is the digi pro. I'm assuming Dirt Devil and Bissell didn't put much money into designing full sized power nozzle equipped canisters because they weren't very popular in America at the time, and other countries did it better because their markets bought more of them. If you look at Dirt Devil, they used that same Power Pak nozzle design for over 10 years on various models, bagged and bagless, before they turned to other companies to source nozzles from. And for Bissell, they just turned to Samsung to brand the digi pro for them presumably because they didn't want to invest the money to design their own. There was a market for canisters, it just wasn't their primary sales.