Inventor Harrison, Mordecai
Invention Plumb Level
Residence Columbia
Dated 1/6/1880
Patent 223,343
Class 224/554
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0223343
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=223343