I have this same one, also purchased well over 20 years ago. It has no name on it unless you count what is on the black plastic case that covers the prongs. The case says “MADE IN TAIWAN”
When I first started working in IT, I worked with an early word processing system called WANG, which was created by a Chinese gentleman named Wang (Dr. An Wang IIRC).
They had an ad campaign with the slogan “WANG, the chink in IBM’s Armor” (IBM was their chief competitor at the time).
Another was “Go floppy with WANG” as they were one of the first manufacturers to feature floppy disks (the big 8” ones!).
Good grief, Larry P, when you bring up The National Review site you see immediately an article calling Bernie Sanders a “National Socialist” which is calling him a Nazi. I bring that up simply because I would not believe a single thing on that site now.
I hadn’t gone that deep, just googled criticism of “chink in the armor” and the only other story I found was the Jeremy Lin one, for which I thought the criticism was valid.