I believe I have seen offset 12pt DBE wrenches both by Williams--Duohex and BluePoint/SnapOn--Boxocket marked with the same patent number, 1424069.
Anyone know the story behind this?
Posting on the other side of the tracks as well.
Everyone needs one of these.
http://www.ebay.com/itm/WILLIAMS-1-1-2-DR-7-5-8-IMPACT-SOCKET-DIV-SNAP-/180718414461?pt=LH_DefaultDomain_0&hash=item2a13a82a7d