After finishing welding up the snow blade, I realized there were a lot of vise grips pliers. So I dug around in the garage, the basement, and upstairs and this is what was there...
Apparently they're all Vise-Grip brand, except the second from the top and bottom, which are Craftsman. Since I always bought the original vise grips, not sure where the one near the bottom came from, maybe out of my dad's toolbox after he died. The smaller one near the top was found on the side of the highway when I was driving the tractor over to a neighbors. Then I remembered there were a couple more...
The top one's for bending sheet metal while is bottom's mainly for welding. It didn't get used this time cause it wouldn't work setting the wings at an odd angle to the snow blade.
According to Wikipedia, "The first locking pliers, with the trade name Vise-Grip, were invented by William S. Petersen in De Witt, Nebraska, United States in 1924; the brand name Vise-Grips is close to a generic name for this type of pliers. Locking pliers are available with many different jaw styles, such as needle-nose pliers, wrenches, clamps and various shapes to fix metal parts for welding."
So there you go, you can't have too many vise grips when it's time to weld!