D. H. Bonnella and Son
D. H. Bonnella and Son of 46-48 Osnaburgh Street, London, NW1
founded by David Hunter Bonnella
1937 Manufacturers of aircraft and electrical accessories. [1]
1939 See Aircraft Industry Suppliers
The company made many small low voltage switches and was a supplier to Ford among others.
In 1963 the company became the manufacturer of Cherry microswitches under licence from Cherry.