It has been discussed before, and it still bugs me.
The top one is normal. When you push/rotate the thumb screw the jaw closes like a normal adjustable.
The second and third ones are backwards, as they work in the opposite direction. When you push on the screw the jaw opens. They are from a Saab and Volvo. The threads are reversed for some reason on these two.
I have never seen any adjustables that work backwards like the Saab and Volvo. All three are made by Bahco.