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AN EDITORIAL INTRODUCTION, WITH, EXPLANATIONS OF PRAC-
TICE AND PROCEEDINGS USED IN PROCURING PATENTS

THROUGHOUT THE WORLD.

COMPILED AND EDITED BY
JOHN L. KINGSLEY, C. E.

AND
JOSEPH P. PIRSSON, C. E.

* PATENT AGENTS,
Editors and Publishers of the Eureka, or the National Journal of Inventions,

Patents, and Science."

NEW YORK :

KINGSLEY AND PIRSSON,

No. 5 WALL STREET.

1848.

Entered according to Act of Congress, in the year one thousand cight hun

dred and forty-eight, by John L. KINGSLEY AND JOSEPH P. Pirsson, In the Clerk's office of the District Court of the Southern District

of New York.

Stereotyped by John M‘Nicoli

11 Spruce St., N.Y.

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