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.
The first typewriter, a invention made by the Austrian carpenter Peter Mitterhofer in 1864, can be seen at the technical museum in Vienna (Austria). Christopher Latham Sholâ¦es also invented a typewriter. Sholes was a U.S. mechanical engineer who invented the first practical modern typewriter, patented in 1868.