§ 81. Certificate to be filed. Whenever a partnership or business
name continues to be used as provided by section eighty, the person or
persons using such name shall sign and acknowledge or swear to a
certificate, declaring the person or persons intending to deal under
such name, with their respective places of residence, and file the same
in the clerk's office of the county where the principal place of
business is located, and cause a copy of such certificate to be
published once in each week for four consecutive weeks in a newspaper of
the city or town in which such principal place of business is located,
or if none be published in such city or town, in the newspaper nearest
thereto. A county clerk with whom any such certificate is filed, shall
keep a register in which shall be entered in alphabetical order the name
of every such partnership and of the partners thereof, and every such
business name of a deceased person and the names of the person filing
certificates therefor.