Inventor Walker, William H.
Invention Improvement in Squares
Residence Charleston
Dated 9/7/1875
Patent 167,482
Class 33/455
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0167,482
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=167482