Who Invented Top Trumps?

Who Invented Top Trumps? The original Top Trumps was launched in 1978 with eleven different packs selling at 50p each, published by a company named Dubreq. Dubreq was also known for the Stylophone. Dubreq was taken over by Waddingtons in 1982, and they continued manufacturing packs until the early 1990s. When were Top Trumps cards