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Recently Patented Inventions
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Crosby Steam Gauge and Valve Co.'s Exhibit - pp225 - 226
doi:10.1038/scientificamerican10071893-225
Lubricators and Safety Steam Appliances at the Fair - p226
doi:10.1038/scientificamerican10071893-226
A Suggested School of Fire Extinguishment - p226
doi:10.1038/scientificamerican10071893-226d
Notes from the Worlds Columbian Exposition Chicago 1893 - p227
doi:10.1038/scientificamerican10071893-227
An Improved Wheel for Velocipedes, Etc - p228
doi:10.1038/scientificamerican10071893-228a
A Wire Rope Tramway Operated at the Fair - pp232 - 233
doi:10.1038/scientificamerican10071893-232
Light Locomotives Shown at the Fair - pp233 - 234
doi:10.1038/scientificamerican10071893-233