INVENTIONS.

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INFORMATION ABOUT CAVEATS, EXTENSIONS, INTERFERENCES, DESIGNS,
TRADE-MARKS, AND FOREIGN PATENTS.

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For Twenty-five years, MUNN & CO. have occupied the leading position
of SOLICITORS OF AMERICAN AND EUROPEAN PATENTS. During this
long experience they have examined not less than _Fifty Thousand
Inventions_, and have prosecuted upwards of THIRTY THOUSAND
APPLICATIONS FOR PATENTS. In addition to this they have made, at the
Patent Office, _Twenty-Five Thousand_ Special Examinations into the
novelty of various Inventions.

The important advantage of MUNN & CO.'s American and European Patent
Agency is that the practice has been tenfold greater than that of any
other agency in existence, with the additional advantages of having
the aid of the highest professional skill in every department and a
Branch Office at Washington, that watches and supervises cases when
necessary, as they pass through Official Examination.

MUNN & CO.,

ASK SPECIAL ATTENTION TO THEIR SYSTEM OF DOING BUSINESS.

_CONSULTATION AND OPINIONS FREE._

Inventors who desire to consult with MUNN & CO. are invited to call at
their office 37 PARK ROW, or to send a sketch and description of the
invention, which will be examined and an opinion given or sent by mail
without charge.

A SPECIAL EXAMINATION

is made into the novelty of an invention by personal examination at
the Patent Office of all patented inventions bearing on the particular
class. This search is made by examiners of long experience, for which
a fee of $5 is charged. A report is given in writing.

To avoid all possible misapprehension, MUNN & CO. advise generally,
that inventors send models. But the Commissioner may at his discretion
dispense with a model--this can be arranged beforehand.

MUNN & CO. take special care in preparation of drawings and
specifications.

If a case should for any cause be rejected it is investigated
immediately, and the rejection if an improper one set aside.

NO EXTRA CHARGE

is made to clients for this extra service. MUNN & CO. have skillful
experts in attendance to supervise cases and to press them forward
when necessary.

REJECTED CASES.

MUNN & CO. give very special attention to the examination and
prosecution of rejected cases filed by inventors and other attorneys.
In such cases a fee of $5 is required for special examination and
report; and in ca