Statue of Zenobe Gramme by Mathurin Moreau. Zenobe Theophile Gramme (4 April 1826 - 20 January 1901) was a Belgian electrical engineer. He invented the Gramme machine, a type of direct current dynamo. Mathurin Moreau (18 November 1822 - 14 February 1912) was a French sculptor in the academic style