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II.-Metallurgy and Mar.ufacture of Metals......
List of Designs that have expired in the years 1849, 1850, and 1851.
IV. ALPHABETICAL LIST OF EXPIRED PATENTS.
XVIII.-Arts, Polite, Fine, and Ornamental.....
XIX.-Fire-arms and Implements of War.
Alphabetical list of Patents for Designs in 1851.
XX.-Surgical and Medical Instruments..
XXI.-Wearing Apparel, including Implements for Manufacturing..
XII.-Lever, Screw, and other Mechanical Power....
THE COMMISSIONER OF PATENTS,
To Arts and Manufactures for the year 1851.
MAY 3, 1852.-Laid upon the table and ordered to be printed. AUGUST 30, 1852.-Ordered that 50,000 extra copies be printed. AUGUST 31, 1852.-Ordered that 10,000 extra copies be printed for the use of the Patent Office.
Hon. LINN BOYD,
UNITED STATES PATENT OFFICE,
SIR: I have the honor of transmitting to you, with the view of its being laid before Congress, that portion of the Report of this Office for the year 1851 which relates to Arts and Manufactures. Its presentation has been delayed for the completion of a Report on the World's Exposition, by Mr. Riddle, commissioner from the United States, which it was desirable to include.
The second or Agricultural section of the Report will shortly be submitted.
Very respectfully, your obedient servant,
Speaker of the House of Representatives.