Specification of Paul Emile Laviron
Subtitle: apparatus for curing smoky chimneys, &c
Publisher: Great Seal Patent Office
Published: 1858
Place of publication: London
Language: eng
Subjects: Smoke prevention; Chimneys
Notes: Cover title.

At head of title: A.D. 1857. No. 2165.

"Paul Emile Laviron, of Paris (France), gentleman".