Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,972 pages of information and 229,026 images on early companies, their products and the people who designed and built them.
of Quadrant Works, Finchley Lane, London, NW4. Telephone: Hendon 3682 3230. Cables: "Beepeelle, London"
Factory at Houseboat Works, Radlett, Hertfordshire.
1939 Commenced trading in Hendon, Middlesex; manufactured various items for the armed services during WWII
1946 Known as B.P.L. (Instruments)
1947 British Industries Fair Advert for Instruments "Made to Measure". Manufacturers of Milliammeters, Voltmeters, Ohmmeters, Universal Bridges, Universal Test Sets, Signal Generators, Valve Voltmeters, Wobbulators, Breakdown Testers, Meghommeter, Wheatstone Bridges, Schering Bridges, Electrolytic Condenser Bridges, Capacity Comparators, Coil Analysers, Coil Comparators, A.F. Oscillator. (Scientific and Optical Section - Olympia, Ground Floor, Stand No. A.1033)
1981 Factory moved to Bedford