Help is needed on the following,  I have a 10" 'Stillson' style pipe wrench that is marked 'ROXBY WRENCH CO', 'BOSTON MASS USA', 'PAT PENG',  'TRADE "ROXBY" MARK'. I have been unable to find any information about the company or if the patent was ever granted.    Danks.

(edited) -- Trimont (Roxbury / Boston, MA ) filed application for ROXBY trademark in November, 1925.   Perhaps the design was enough different from the TRIMO and Stillson type pipe wrenches Trimont was making at the time to warrant trying an untested product with a different "brand" without putting their established brands at risk.  "ROXBY" also shows up as a TRIMONT brand in a 1932 hardware trade directory. 
p.s. One more clue -- the frame style for the adjustable jaw appears in patent #1,613,229 [ https://www.datamp.org/patents/displayPatent.php?number=1,613,229&type= ]  -- the primary focus in that patent is one form of TRIMO "Nut guard."

Many thanks for this information, helps to fill in some gaps on its origin, dates etc. Cheers Danks