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"Twitter spend will increase this year for a number of reasons, one being their embrace of television," said David Rittenhouse, Ogilvy & Mather's managing director.
Another top seller in the sale of 94 lots was the 1792 Half Disme, which dates back to David Rittenhouse, the first director of the U.S.
In Adweek, David Rittenhouse, media director at Razorfish, is quoted; "This is a very new market.
The most important clock in America; the David Rittenhouse astronomical musical clock at Drexel University.
In 1760, however, American David Rittenhouse developed a means of using spider silk strands as crosshairs for optical instruments.
Philadelphia native David Rittenhouse served as the society's president from 1791 to 1796, after holding positions as Professor of Astronomy and Vice-Provost at what is now known as the University of Pennsylvania.
Of course, nothing so dramatic happened to Harvard's John Winthrop as befell David Rittenhouse in Pennsylvania, who fainted dead away from the excitement at the crucial moment.