Inventor Lewis, George T.
Invention Phosphatic rock, Treating
Residence Charleston and Philadelphia, PA
Dated 7/9/1872
Patent 128752
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Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0128752
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=128752