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patented stuff that was made?
The following patented stuff that may or may not have been made commercially. Most are scans from the Scientific American Magazine from the 1850's to the 1890's. Just as now, Americans were busy trying to find better ways to do things. These scan show how far some people went to solve a problem.
Click on the image for the full sized view. |
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Copyright 2009 Mark Conley |
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