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A man named Brewster.
Roger M. Brewster submitted the original U.S. patent for a coin sorting machine. The invention was believed to have been completed around the year of 1909.
yes
If you refer to a copper coin, simply place it in a measuring glass of water and work out the difference between the start and final volumes; that is the volume of the coin.
Yes - open up presentations - then for one you want to copy go to slide sorter view, click ( highlight) all slides and hit copy then go to first presentation, sorter view, hit paste where you want to copy and they are integrated. Do same for next, etc.