Inventor Mason, Charles T. jr.
Invention Process of Cutting V-Shaped Slots in Sheet Metal
Residence Sumter
Dated 12/14/1886
Patent 354,202
Class 83/50
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0354202
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=354202