Specification of Richard Jex Crickmer
Subtitle: treating sewage
Publisher: Great Seal Patent Office
Published: 1859
Place of publication: London
Language: eng
Subjects: Sewage; Sewerage; Filters and filtration
Notes: Cover title.

At head of title: A.D. 1858, 8th July. No. 1540.

"Richard Jex Crickmer, of the Borough Road, in the county of Surrey, civil and mechanical engineer".