Mark Twain was granted U.S. Patent No. 140,245 for a self-pasting scrapbook on June 24, 1873.
Notes on verification
Confirmed by primary patent record (Google Patents US140245A) and corroborated by Mark Twain House & Museum and USPTO, independent sources agree on patent number, date, and description.
Sources
- Unswerving irregularity | USPTO (uspto.gov)
- https://patents.google.com/patent/US140245A/en (patents.google.com)
- https://www.marktwainhouse.org/mark-twain-the-inventor/ (marktwainhouse.org)