The Boot and Shoe Manufacturers' Assistant and Guide. / Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, and Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning.

by Unknown

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.”