Features
The Celebrated Niagara Suspension Bridge
Money's Improvement in Umbrellas
The American Torpedo Boat of 1776
Manufacturing, Mining, and Railroad Items
Recent American and Foreign Patents
Answers to Correspondents
Morrison's Machine for Kneading Dough
Roys' Application of Corrugated Iron
Scale for Weighing Letters, Papers, Etc.
Patents in Canada to American Citizens
The Importance and Difficulty of the Puddling Process--Late Improvements in Mechanical Puddling
A Remarkable Summer Excursion
Patents and Claims
Pending Applications for Reissues
Extension Notices
Departments
- Departments
Business and Personal
