Specification of Robert Armstrong and James Bernard Dew
Subtitle: apparatus for consuming smoke
Contributors: Dew, James Bernard
Publisher: Great Seal Patent Office
Published: 1855
Place of publication: London
Language: eng
Subjects: Steam-boilers; Smoke prevention; Furnaces
Notes: Cover title.

At head of title: A.D. 1854. No. 1528.

"Robert Armstrong, of Hall Street, City Road, in the county of Middlesex, consulting engineer, and James Bernard Dew, of Pentonville, in the county of Middlesex, gentleman."