Specification of John Botterill and John Botterill, the younger
Subtitle: consuming smoke & economizing fuel
Contributors: Botterill, John, the Younger
Publisher: Great Seal Patent Office
Published: 1870
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces; Steam-boilers
Notes: Cover title.

At head of title: A.D. 1870, 12th January. No.421.

"John Botterill and John Botterill, the younger, both of Leeds, in the county of York, dyers and chemists".