Improvement in Buildings. Touaillon, J. 1870. United States Patent Office 99,973
Paper bibtex @Misc{Touaillon1870,
author = {Jules Touaillon},
title = {Improvement in Buildings},
year = {1870},
note = {United States Patent Office 99,973},
url = {https://patents.google.com/patent/US845046A/},
}