Inventor Chisolm, William B.
Invention Phosphate Rock Drier
Residence Charleston
Dated 8/2/1892
Patent 479,872
Class *
Assign 1/2 to Samuel Hughes of same place
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0479872
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=479872