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.
No one knows how old the stencil is. The idea is so simple that historians believe stencils may have been used thousands of years ago. The silk-screen stencil is believed to have been invented in Asia as long ago as A.D. 500. By the 1600's, silk-screen printing was a highly developed art in China and Japan. It spread gradually to Europe. Samuel Simon, of England, received the first patent for silk-screen stencil printing in 1907.