Specification of William Alexander Lyttle
Subtitle: treating sewage
Publisher: Great Seal Patent Office
Published: 1875
Place of publication: London
Language: eng
Subjects: Sewage; Charcoal; Deodorization; Filters and filtration; Iron
Notes: Cover title.

At head of title: A.D. 1874, 13th July. No. 2446.

"William Alexander Lyttle, of the Grove, Hammersmith, in the county of Middlesex, engineer".