That configuration of auto wrench was a standard issue for Ford cars for many years (marked, "Ford"); some people call them Ford wrenches, although, properly, it's only a Ford wrench if it says Ford on it. It's like kleenex - a brand name that wound up covering the entire category.
Some folks also call them monkey wrenches, although in my opinion that's misnaming them. If you wander around the General Discussion forum, you'll find examples of monkey wrenches (which are NOT used in monkey maintenance).