OFFICES FOR

BRITISH and FOREIGN PATENTS

AND THE

REGISTRATION of DESIGNS and TRADE MARKS,

47, LINCOLN'S-INN FIELDS, LONDON,

J. H. JOHNSON, SOLICITOR, Assoc. INST. C.E.

AND

115, ST. VINCENT STREET, GLASGOW.

J. H. JOHNSON, SOLICITOR.

ST. JOHN V. DAY, C.E.

THE

PATENTEE'S MANUAL

BEING

A TREATISE

ON THE

LAW AND PRACTICE OF LETTERS PATENT

ESPECIALLY INTENDED FOR THE USE OF

PATENTEES AND INVENTORS

BY

JAMES JOHNSON

OF THE MIDDLE TEMPLE, BARRISTER-AT-LAW

AND

J. HENRY JOHNSON, Assoc. INST. C.E.

SOLICITOR AND PATENT AGENT, LINCOLN'S-INN FIELDS,

AND GLASGOW

Fourth Edition, thoroughly Revised and much Enlarged.

LONDON:

RIBLIOTHER

FEB 79

SODLEIANA

LONGMANS, GREEN, & CO., PATERNOSTER ROW

STEVENS & SONS, 119, CHANCERY LANE

BY THE SAME AUTHORS,

Price 18.,

A CONCISE VIEW OF THE LAW CONNECTED WITH

LETTERS PATENT FOR INVENTIONS.

A Handy Book of Patent Law.

LONDON: LONGMANS & Co.