Table of contents
Recently Patented Inventions
Business and Personal
Notes and Queries
Index
Patent Notes
Top of page
Top of pageArticles
Recent Improvements in the Pneumatic Dynamite Gun - p175
doi:10.1038/scientificamerican09201890-175
A Device for Manipulating Doors and Windows - p178
doi:10.1038/scientificamerican09201890-178
A Register and Recorder for Revolving Shafts - p179
doi:10.1038/scientificamerican09201890-179
An Improved Safety Indicator for Elevators - p179
doi:10.1038/scientificamerican09201890-179b
An Improved Lifting Truss Girder - pp179 - 180
doi:10.1038/scientificamerican09201890-179c
The New German Armored War Ship Siegfried - p185
doi:10.1038/scientificamerican09201890-185