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Sparking plus and oil filters, of Birmingham
of Watling Street, Dunstable, Beds. (1937)
c.1924 Formerly the Sphinx Manufacturing Co
1937 Manufacturers of sparking plugs and other accessories. [1]
1939 See Aircraft Industry Suppliers
1946 Became the AC-Sphinx Sparking Plug Co, a division of General Motors (see advert)
1953 The AC-Sphinx Sparking Plug Co was in voluntary liquidation[2]
It became the AC Delco Division of General Motors
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