de by the
representative of a deceased author, such applicant shall state that he
is the heir, executor or administrator (as the case may be) of such
deceased author, that he believes that said deceased author was the
original and first author of the article upon which a certificate of
copyright is applied for, and of what country he--such
representative--is a citizen. Such statement shall be verified by the
oath of the applicant, and accompanied by a copy of the article upon
which a certificate of copyright is applied for, if the same shall have
been published; or, if the same shall not have been published, a copy of
the title thereof. In case such article shall not have been published at
the time of filing the application, a copy thereof shall be delivered to
the Minister of the Interior within one month after the publication
thereof in this Republic. The duration of a copyright is twenty years.
The attest of oath must comply with Rule 23.

PRINTS, LABELS AND TRADE-MARKS.

47--A certificate of the registration of any print, label or trade-mark
intended to be attached or applied to any goods or manufactured
articles, or to bottles, boxes or packages containing the same to
indicate the name of the manufacturer, the contents of the packages, the
quality of the goods, or directions for use, may be secured by any
person, firm or corporation.

APPLICATION FOR THE REGISTRATION OF A PRINT, LABEL OR TRADE-MARK.

48--The application for a certificate of registration for a print, label
or trade-mark is a declaration signed by the applicant or applicants and
addressed to the Minister of the Interior, stating that such applicant
is, or such applicants are, the sole and original proprietor or
proprietors, or the assign or assigns, of such proprietor or
proprietors of the goods or manufactured articles for which such print,
label or trade-mark is to be used, and describing such goods and
manufactured articles and the manner in which such print, label or
trade-mark is to be used.

Such declaration shall be verified by the oath of the applicant; or, if
the application be made by a firm or a corporation, by the oath of a
member of such firm or an officer of such corporation, and accompanied
by three[C] exact copies of such print, label or trade-mark. The
duration of the registration of a print, label or trade-mark is twenty
years. The attest of oath must comply with Rule 23.

ASSIGNMENTS.

49--Every patent, every certifi