Title: Mode of procuring tannin
Patent number: X3,766
Date granted: 10/03/1823
Notes: X patent numbers are from a group of patents that were destroyed in a fire at the U.S. Patent office in 1836. No image of this X patent is available.
View this patent at the USPTO.
Inventor: D. Roe
Inventor: C. Kellogg
Inventor: J. Gazlay