There is no branding on this anywhere on this razor.
This one has "MADE IN U.S.A.", the XOXO and a number 3 on the underside of the base plate, and is the only text anywhere on the razor. The 3, I would guess to be a mould number and the XOXO the Scale.

There is a thin spring steel shim riveted to the base plate which keeps the blade clamped and under tension. Adjustment is by way of unscrewing the handle which has an arrow on the top of it. That in turn points to the "XOXO" under the base plate. All-in-all a very simple adjustment system.

They are rumoured to have been manufactured by Doehler-Jarvis, who were a steel smelter. Doehler-Jarvis was based in Toledo and founded in 1907. During the mid 20^th century, they were the worlds biggest producer of die-cast metal items and finally closed down in 1998.

I've seen them branded as:
Berkeley Shave Selector - The Berkeley Custom Shaver uses the same mechanism.
Club
Cooper
Doehler-Jarvis
This has no branding which I believe to be a "Hospital"