Inventor Brotherhood, Fred
Invention Apparatus for Dredging, Crushing, and Washing Phosphate Rock
Residence Charleston
Dated 5/13/1884
Patent 298,443
Class 299/9
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0298443
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=298443