The most frequent autonomic symptoms associated with multiple system atrophy are a sudden drop in blood pressure upon standing (orthostatic hypotension), urinary difficulties, and erectile dysfunction in men.
The IBM Selectric typewriter was a highly successful model line of electric typewriters introduced by IBM on 31 July 1961.
Christopher Latham Sholes (1819 1890), a U.S mechanical engineer, invented the first practical modern typewriter with his partners S.W Soule and G.Glidden in 1866. The invention was patented in 1868, and was manufactured (by Remington Arms Company) in 1873.he first electric typewriter was the Blickensderfer. In 1944, IBM designed the first typewriter with proportional spacing. Pellegrine Tarri made the first typewriter proven to work in 1801 and invented carbon paper in 1808.