Patent for a motorized construction vehicle which has a cement mixer and a trench digger on it that allows for the continuous laying of concrete pipes for irrigation.
Patent for a "machine for separating ores of precious metals, and particularly to that class of machines known as 'dry concentrators or separators,' used for separating fold ore by means of an air-blast over dry sand, gravel, quartz, etc." (lines 10-15). Illustrations and instructions are included.
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