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Recently Patented Inventions
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Progress of Railways in the United States - p130
doi:10.1038/scientificamerican08261893-130
Notes from the Worlds Columbian Exposition Chicago 1893 - p131
doi:10.1038/scientificamerican08261893-131
A Gold and Silver Refining Establishment - p132
doi:10.1038/scientificamerican08261893-132b
An Improved Balanced Slide Valve - pp132 - 133
doi:10.1038/scientificamerican08261893-132d
Improved Circular and Elliptical Boring Machine - pp133 - 134
doi:10.1038/scientificamerican08261893-133
Experiment Showing Magnetic Lag - p134
M. Hopkins
doi:10.1038/scientificamerican08261893-134
Warburton Road Bridge—Manchester Ship Canal - p136
doi:10.1038/scientificamerican08261893-136
World's Columbian Exposition—Entrance to the Palace of Agriculture Building - p138
doi:10.1038/scientificamerican08261893-138