WASHINGTON : 



S. E. Corner Seventh and F streets, 



OPPOSITE PATENT OFFICE. 



CINCINNATI : 



N. E. Corner Fourth and Vine Sis., 



OPPOSITE POST OFFICE. 



CONSTANT PERSONAL ATTENTION GIVEN IN U. S. PATENT OFFICE TO ALL PENDING BUSINESS. 



REFER BY PERMISSION TO 



Hon. JOHN MCLEAN, U. S. Supreme Court, Hon. SAMUEL INQHAM, Ex-Gov. Conn., Comm'r of Customs. 



Messrs. GALES A SEATON, Washington, D. C. Hon. J. H. B. LATROBE, Baltimore, Md. 



"VST. D. SHEPHERD, 



lillllffi AB& flmMIOBIB. 



CORNER OF SEVENTH AND D STREETS, 



DEALER INT PLAIJ AIVD FA1CY STATIONERY, 



$tj}0ol mtfr Collegiate fei 00fes, 



DRAWING INSTRUMENTS AND ARTISTS' MATERIALS, WRITING DESKS, PORT- 

 FOLIOS &c., FANCY GIFT GOODS, 



ALL STANDARD AUTHORS, &c. WHOLESALE AND RETAIL. 



The undersigned, formerly an Examiner of Patents, and a member of the Board 

 of Appeals under the late Commissioner of Patents, Hon. JOSEPH HOLT, having 

 RESUMED the practice of his profession, attends to procuring American and Euro- 

 pean Patents. 



Inventors can also have their inventions examined prior to making an applica- 

 tion/or a patent , by sending a pencil sketch, &c.,for a fee of five dollars. 



THOMAS H. DODGE, 



Counsellor at Law and Advocate in Patent Cases, 



464f SEVENTH STREET, WASHINGTON, D. C. 



J. DENNIS, J R ., SOLICITOR OF PATENTS, 



PRACTICAL MACHINIST, MANUFACTURER AND DRAUGHTSMAN. 



Having had twenty years' experience in building and operating machinery for manufacturing Cotton, Silk 

 Wool, Steam Engines, Printing Calico, <fec., with ten years' experience in procuring patents, tenders his services 

 to inventors to make examinations of their inventions from a rough sketch or drawing and limited description, 

 (which may be forwarded by mail,) and compare them with the inventions in the Patent Office, and give ar 

 opinion, whether the invention is patentable or not, for a fee of $5, and save the inventor the expense of apply- 

 ing for a patent, which usually costs $60, exclusive of the cost of model, and only about two-fifths of the patents 

 applied for are granted. His experience in making drawings of, building, and operating machinery, enables 

 him to understand an invention from a rough drawing and limited description, and to comprehend the points 

 in which the invention differs from those already patented, with the greatest facility; or for a similar fee, he 

 will make an examination and give an opinion as to which is the best patented machine for any purpose. He 

 also prepares drawings, specifications, caveats, and assignments, or procures copies from, or attends to any busi- 

 ness connected with the Patent Office. Counsellors in patent cases can have an opinion by stating the points in 

 their case, and arguments prepared with the proper authorities cited to sustain the same, with depositions if 

 necessary. He will also attend as Counsellor or Advocate in patent causes in any Court. N. B. All communi- 

 cations considered strictly confidential. Rejected applications carefully examined for $5. Appeals from the de- 

 cisions of the Commissioner of Patents taken to one of the Judges of the Circuit Court for a moderate fee. Cir- 

 culars containing important information for Inventors and Patentees forwarded to any person desiring them. 

 Office, 371 F st. north, opposite the south front of the Patent Office, near $th St., Washington, D. C. 



