Table of contents
May 13, 1871, Volume 24 No 20 pp303-316
About the coverBusiness and Personal
Books
Top of page
Top of pageArticles
Hannahs' Patent Metropolitan Railway, Precautions in Using Wire Rope - pp303 - 304
doi:10.1038/scientificamerican05131871-303
Mitchell & Kessinger's Improved Flour Bolt - p307
doi:10.1038/scientificamerican05131871-307
G. K. Proctor's Improved Treadle Motion - p307
doi:10.1038/scientificamerican05131871-307a
The Blowpipe as an Aid to the Drill in Opening Safes - pp311 - 312
doi:10.1038/scientificamerican05131871-311b
Important Decision by the Commissioner of Patents - p312
doi:10.1038/scientificamerican05131871-312
Inventions Made by Workmen—Who Owns Them? - p312
doi:10.1038/scientificamerican05131871-312b
On a Method of Determining the Percentage of Water Mechanically Suspended in Steam Delivered from Boilers which Prime - pp312 - 313
doi:10.1038/scientificamerican05131871-312d
Important Decision of the Commissioner of Patents—Trade Mark Patents - pp313 - 314
doi:10.1038/scientificamerican05131871-313a
Recent American and Foreign Patents - pp314 - 315
doi:10.1038/scientificamerican05131871-314c
