Woodward's patent improved gas carbonizer & purifier
Subtitle: securing increased brilliancy, decreased consumption, decreased heat, decreased smoke, and a pure atmosphere.
Contributors: Alsop, Robert.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 90218
Publisher: s.n.
Published: 1991
Place of publication: [Montréal?
Language: eng
Format: Microform
Subjects: Gas-lighting.
Notes: Caption title.

At head of title: By Her Majesty's royal letters patent.

"Manufactured and sold by Robert Alsop No. 156 Great St. James Street, Montreal."

Filmed from a copy of the original publication held by the National Archives of Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1991.

[3] p. ; 27 cm.