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Act of July 23, 1868, chapter 227, volume 15, page 168.

Act of March 3, 1869, chapter 121, volume 15, page 293.

COPYRIGHTS.

Act of February 15, 1819, chapter 19, volume 3, page 481.

Act of February 3, 1831, chapter 16, volume 4, page 436.

Act of June 30, 1834, chapter 157, volume 4, page 728.

Act of August 18, 1856, chapter 169, vol ume 11, page 138.

Act of February 5, 1859, chapter 22, volume 11, page 380.

Act of February 18, 1861, chapter 37, vol. ume 12, page 130.

Act of March 3, 1865, chapter 126, volume 13, page 540.

Act of February 18, 1867, chapter 43, volume 14, page 395. Approved July 8, 1870.

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PART II.

SYNOPSIS

OF THE

LAWS AND PRACTICE OF LETTERS PATENT

FOR INVENTION

IN THE PRINCIPAL FOREIGN STATES.

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1. LAW AND DATE.—28th September, 1864. Promulgated 11th October, 1864. (See Commissioners of Patents' Journal, [ride infra, $ 71,] Nos. 1393, 1394, and 1453,

An., 1867.)

2. KINDS OF PATENTS.--Patents of inventions granted to inventors or their assignees. Reissue of foreign patents. Certificates of addition or improvement. Provis

ional patents.

3. Previous EXAMINATION.—By the sub-commissioners. The following are not patentable: Pharmaceutical compositions; financial schemes; discoveries or inventions known or published abroad, or in the Republic; theoretical schemes; and inventions contrary to morals

and to law.

4. DURATION.—Patents of inventions, five, ten, or fifteen years. Reissues of foreign patents limited to ten

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