50 YearsExperience … de Narks,Designs,CopyrlgKts, Etc. Anyone sending: a sketch and description mayquickly ascertain our opinion free whether aninvention Is probably patentable. Communica-tions strictly confidential. Handbook on Patentssent free. Oldest acency for securing patents. Patents tasen throogh Munn & Co.…
Patents · Device · Machine · Object · Scientific American · Adapted · American supplement · American september · Horse power · Canadian patent · Thill coupling · Blue gum · Sewing machine · Typewriting machine · Trade mark
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
