Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,432 pages of information and 233,521 images on early companies, their products and the people who designed and built them.
of Assembly Works, Middle Lane, Hornsey, London, N8. Telephone: Mountview 2225. Cables: "Effracopla, London." (1929)
of Woodside Lane, London, N12. Telephone: Hillside 2224-5. Cables: "Effracopla, Phone, London." (1947)
1929 Listed Exhibitor - British Industries Fair. Moulders of High Class "Bakelite" and "Omnite" Insulators, Electric Fittings, Ash Trays, Tea Trays, Table Ware, Fancy Goods, Wireless Parts, Acid Resisting Fittings, etc. Metal Stampers and Piercers. Makers of Small Mechanical Chains. (Stand No. J.111) 
1933 Patent - Improvements in screw or like stoppers for bottles or the like and in processes for the manufacture thereof. 
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Compression and Transfer Mouldings in Phenolic and Urea Materials. Injection Mouldings in Cellulose Acetate, Polystyrene, Alkathene, etc. Technical Parts for Electrical, Radio. Engineering and other Trades. Fancy Articles, Advertising Novelties. (Earls Court, 1st floor, Stand No. 827) 
1959 Patent - Improvements in watering cans. 
1962 Patent - Improvements in or relating to hollow floats for float-operated valves.