Here's a Husky version:

And Thorsen made one called the Speed-Hed:

I even have an old Blue Point of similar design:
There's the Alden:
A craftsman with a little moving peice on one side:

Armstrong:

Facom:

Then there's these oddballs, I never could find out much about them:

And the recently discovered LockJaw:

And many, many more; even Snap On and GearWrench have versions.
What's really strange is that almost all if not every one has a different patent number.