Inventor Roberts, George W.
Invention Phosphate Washing Machine
Residence Chisholm's Island
Dated 4/12/1892
Patent 472,820
Class *
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0472820
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=472820