WALES, EMMONS & Co., _66 Pearl St., Boston_. BREDEN & SOUTHWICK, _107 & 109 Liberty St., New York_. N. N. HALSTEAD, PRESIDENT, E. S. CONVERSE, SECRETARY. ------------------------------------------------------------------------ UNITED STATES AND Foreign Patent Agency. SAMUEL COOPER, LATE PRINCIPAL EXAMINER OF PATENTS IN THE UNITED STATES PATENT OFFICE AT WASHINGTON. Office, Webster Building, No. 13 Exchange Street, BOSTON. PATENTS procured in the United States, and in all other patent granting countries. SPECIFICATIONS and DRAWINGS prepared. CAVEATS filed. RECONSIDERATIONS procured, of applications that have been rejected upon imperfectly prepared papers. INTERFERENCES prosecuted. RE-ISSUES and EXTENSIONS procured. Those unacquainted with him are referred to following testimonials: _From the_ Hon. CHARLES MASON, _Commissioner of Patents_. U. S. PATENT OFFICE, _Feb. 28, 1855_. “I take great pleasure in stating that during the time I have been acting as Commissioner of Patents, Samuel Cooper, Esq., of Boston, has been engaged as solicitor, and has been engaged in that capacity in constant correspondence and intercourse with the office; he has evinced a thorough acquaintance with Patent Law, and with the rules and practice of the Office, a close attention to the interests of his clients, and a marked candor and courtesy that has rendered the transaction of business with him a pleasure. I have no hesitation in stating that I regard him as one of the very best agents for the transaction of business with this Office, with whom I am acquainted. CHARLES MASON, _Commissioner_.” _From the_ EXAMINERS _in the_ PATENT OFFICE. “The undersigned, Principal and Assistant Examiners in the United States Patent Office, have for several years been well acquainted with Mr. Samuel Cooper, lately a Principal Examiner in this Office, and take pleasure in stating that he is a gentleman of the highest moral character, of unquestioned knowledge in the business and practice of the Office, and that his scientific attainments are such as eminently fit him for the business in which he is about to engage.” HENRY B. RENWICK, } L. D. GALE, } Principal J. H. LANE, } Examiners. T. R. PEALE, } THOS. T. EVERETT, } Assistant P. SOUTHGATE SMITH,} Examiners. WILLIAM C. LANGDON,}