A press to automate liphography - a liphograph - is created by Senefelder as a way to make the process even easier. Demand for liphography increases dramatically and by 1970 there were at least 480 total liphographs in just the United States. (jan 1, 1817 – jan 1, 1971)
Added to timeline:
Date:
jan 1, 1817
jan 1, 1971
~ 154 years