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.
When was the typewriter invented? Quick Answer. The invention of the typewriter is attributed to several inventors, including Henry Mill's concept typewriter of 1714, Rasmus Malling-Hansen's writing ball of 1870 and Christopher Latham Sholes' successful American typewriter of 1868. Sholes' design is the basis for the modern typewriter.