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A TREATISE

ON

THE LAW OF PATENTS

FOR

USEFUL INVENTIONS.

ON

THE LAW OF PATENTS

FOR

USEFUL INVENTIONS

IN THE

UNITED STATES OF AMERICA.

SECOND EDITION,

WITH MANY ADDITIONS.

BY

GEORGE TICKNOR CURTIS,

COUNSELLOR AT LAW.

BOSTON:

LITTLE, BROWN AND COMPANY.

1854.

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