Specification of William Robert Lake
Subtitle: deodorizing and utilizing sewage
Publisher: Great Seal Patent Office
Published: 1874
Place of publication: London
Language: eng
Subjects: Sewage; Deodorization; Boilers
Notes: Cover title.

At head of title: A.D. 1874, 23rd April. No. 1415.

"William Robert Lake, of the firm of Haseltine, Lake, & Co., patent agents, Southampton Buildings, London."