I have never seen this thread before! Glad it was bumped.
Found a pair of the double pivot, 8".
I love the raised thumb pad (which Bledsoe called a "knob" in his patent)! Only the patented "locking" model seems to have it.
DATAMP mentions this pliers, but not saying why it was patented, in the comments for this patent
It's interesting that while the pliers are stamped Minneapolis, he was listed as being in Bonam, Texas.
There does not seem to be any explanation for the "Minneapolis" stamping
My preliminary research reveals that prior research, here, and also by DATAMP stewards, was likely inhibited by identifying the tool as pliers rather than as a wrench.
The name of the company might could be the
Bledsoe Wrench Company. Where the tools were manufactured may still be a mystery, but it looks like they probably had a "business office" at
1403 Foshay Tower, Minneapolis, 2 Minn in the late 40's. That building, modeled after the Washington Monument, is now a grand historic hotel and was never suitable for manufacturing as far as I know. All of the references I have found are snippet-only view and none of them put a description of the tool or a picture of the tool together with the name and address, so, technically, this is all still strong probability/informed conjecture, although I would bet my next paycheck on it.

