Flag of Burkina Faso of black, white, and red. These colours represented the three major tributaries of the Volta River, which flows south through the country: the Black Volta, the White Volta and the Red Volta. It is similar to the tricolor flag used by the German Empire from 1871 to 1918. The flag was changed when Upper Volta became Burkina Faso on 4 August 1984. From 1984 until 1997, the official Burkina Faso coat of arms used a revolutionary central crest featuring a mattock crossed with a Soviet AK-47 assault rifle, along with an open book symbolising the importance of education and the
Volta Laboratory and Bureau described it, saying: The Volta Bureau is located at 3417 Volta Place NW, or alternatively at 1537 35th St. NW, in the Georgetown district of Washington, D.C. near Georgetown University and across the street from Georgetown Visitation Preparatory School, and close to the Foggy Bottom Metro subway stop. "Patents which resulted or flowed from the Volta Laboratory Association": Footnotes Volta Laboratory and Bureau The Volta Laboratory (also known as the "Alexander Graham Bell Laboratory", the "Bell Carriage House" and the "Bell Laboratory") and the Volta Bureau were created in Georgetown, Washington, D.C. by Alexander Graham Bell. The Volta Laboratory was