Specification of Samuel Hopkinson and Edwin Hopkinson
Subtitle: smoke-consuming apparatus
Contributors: Hopkinson, Edwin
Publisher: Great Seal Patent Office
Published: 1865
Place of publication: London
Language: eng
Subjects: Smoke prevention; Steam-boilers; Coal
Notes: Cover title.

At head of title: A.D. 1865, 2nd March. No.584.

"Samuel Hopkinson and Edwin Hopkinson, both of Bradford, in the county of York"