User Tools

Site Tools


x-patents:x-2814

Patent X-2814: 1817-07-12, Machine for scraping and sweeping chimneys

X Number Date Inventor City Title Status
X-2814 1817-07-12 John Hunt Baltimore, MD Machine for scraping and sweeping chimneys Missing

Comments

Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.

Information Sources

(To be filled in.)

x-patents/x-2814.txt · Last modified: 2019/05/25 21:49 by 127.0.0.1

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki