My great-aunt had a Fedders air conditioner that had one of those stickers on it. For a while in the '60s, it seemed like you saw that logo everywhere. I always thought it was clever of the Steelers to work out the deal with U.S. Steel to use the logo.
An aside: My parents grew up on Gadsden, AL, whose main employer was a huge steel plant that at the time belonged to Bethlehem Steel. In terms of acreage, the plant was nearly as large as the town. And this plant did everything: it had blast furnaces for making pig iron, open hearth furnaces for making steel, electric-arc furnaces for specialty steels. It had mills for bar, plate, tube, and sheet steel. It had some machining capability for making steel parts to order. It even had its own coking ovens.
My great-uncle on my mom's side was a manager there for pretty much his entire adult life until he retired; he had lied about his age to get his first job there at 15. My father worked there for a year or so after he graduated from college, as an electrical engineer.
The plant expanded several times during my childhood. Each time they wanted to expand, they got the city to use eminent domain to condemm neighborhoods that bordered on the part of the plant they wanted to expand; the city tore them down and then sold the land to the mill. The point at which the plant jumped the shark was in 1969, when they convinced the city to sell them the land that the neighborhood's elementary school sat on. When they tore down the school, families with children started moving away; property values nosedived and an undesirable element started moving in. The irony was that shortly after acquiring the land, the mill experienced a downturn, and it never did do anything with the land. It still sits empty and fenced-off today, a sad reminder of what the now-decrepit neighborhood used to be.