Of course, I forgot the add the patent number. It is U.S. patent 1,075,710 On 1/19/2017 2:51 PM, Michael Zahorik wrote: > Well, I ordered a set. Never heard of Bristol wrenches before. Learn > something new every day. Thanks, Let you know how this works out after > the wrenches show up. -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL