Specification of Adolphus Videky
Subtitle: separating solid from liquid excreta
Publisher: Great Seal Patent Office
Published: 1871
Place of publication: London
Language: eng
Subjects: Sewage; Sewerage; Filters and filtration; Toilets
Notes: Cover title.

At head of title: A.D. 1871, 2nd June. No. 1469.

"Adolphus Videky, of Islington, in the county of Middlesex".