Showing Collections: 1 - 1 of 1
Fred C. Ielfield patents
Found in:
Manuscripts and Archives
Collection
Accession: 1043
Abstract:
Fred C. Ielfield (1864-1948) was a mechanical engineer and inventor. This collection consists of twelve patents for mail canceling and postmarking machinery, corn-husking machinery, and a cereal cutter, all invented by Ielfield.
Dates:
1901-1946
