Cleaning out a tool drawer today, I found these. Don't know much about the company. Nothing in AA. Looks like they were in business from 1866 to 1985 when Vermont American bought them out. Marked 'Seymour Smith & Sons, Oakville, Conn.' 'Powr Grip No 607' 'Pat Pending'
Found this info from a brace collector
http://www.sydnassloot.com/Brace/Seymour.htm (http://www.sydnassloot.com/Brace/Seymour.htm)
(http://i1202.photobucket.com/albums/bb373/johnsironsanctuary/My%20Wrenches/DSCN1626a.jpg)
(http://i1202.photobucket.com/albums/bb373/johnsironsanctuary/My%20Wrenches/DSCN1625.jpg)
(http://i1202.photobucket.com/albums/bb373/johnsironsanctuary/My%20Wrenches/DSCN1624.jpg)
(http://i1202.photobucket.com/albums/bb373/johnsironsanctuary/My%20Wrenches/DSCN1628.jpg)
I think Powr-Grip turned out to be too close to Vise Grip, so they became Snap-Lock pliers....
Thanks Rusty, I guess that dates it as pre 1948
hmm, looks like Seymour was living dangerously....
The application for the patent was in 1948, but the patent wasn't issued until 1952..
2598650
http://www.google.com/patents?id=SS5pAAAAEBAJ&pg=PA3&dq=%22seymour+smith%22+pliers&hl=en&sa=X&ei=h05yT-CBDavE2QWdicTNDg&ved=0CDQQ6AEwAA#v=onepage&q=%22seymour%20smith%22%20pliers&f=false
I have a pair or Seymours, but they are Snap--Lock.
There are 2 patents.
Yours is different than what I have. Yours is like the ad from Rusty. Never seen a Powr-Grip made by Seymour.