Inventor Chatfield, Benjamin P.
Invention Improvement in Filters
Residence Aiken
Dated 2/25/1879
Patent 212,658
Class 210/428
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0212658
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=212658