UNT Libraries Government Documents Department - 2 Matching Results
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- Mechanical Telegraph-Sounder
- Patent for "a sounder wherein a finger-lever and sounding-lever are combined together with a spring" (lines 13-15) and is "adapted for the use of learners for practicing the manipulation of a telegraph finger-key" (lines 8-10) including instructions and illustrations.
- Washing-Machine.
- Patent for an improved washing machine: "The invention consists in combining a lower cylinder having longitudinal spiral grooves with an upper cylinder having longitudinal straight grooves and holes" (lines 14-17).