Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Patent Artificial Slate Manufactory, Woodford Bridge, Essex, for Covering Roofs, Fronts of Houses, and Ricks; Also Water Pipes and Gutters. Specimens of the Above Articles and Models... May be Seen at Mr. Cooper's, Printer, Bow Street, Covent Garden, London..