UNT Libraries Government Documents Department - 2 Matching Results
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- Insect Destoyer
- Patent for an insect destroyer. "This invention relates particularly to that class of insect destroyers which contain pans of liquid into which the insects are shaken or enticed" (line 15-18). Illustration included.
- Process For Treating Petroleum-Oils
- Patent for an improved process for treating petroleum oils, to remove asphaltum. (lines 9-12)