Inventor Hughes, Samuel
Invention Apparatus for Treating Phosphate Rock
Residence Charleston
Dated 9/27/1892
Patent 483,452
Class *
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0483452
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=483452