Specification of Auguste Jules Hennart
Subtitle: smoke-consuming gates
Publisher: Great Seal Patent Office
Published: 1862
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces
Notes: Cover title.

At head of title: A.D. 1861, 21st August. No.2087.

"Auguste Jules Hennart, of Tournay, kingdom of Belgium, manufacturer"