Specification of Joseph Roberts
Subtitle: consumption of smoke, &c
Publisher: Great Seal Patent Office
Published: 1868
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces; Steam-boilers
Notes: Cover title.

At head of title: A.D. 1868, 11th September. No. 460.

"Joseph Roberts Stoney, of Leeds, in the county of York, engineer".