UNT Libraries Government Documents Department - 2 Matching Results
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- Automatic Railway-Gate.
- Patent for a "strong, durable, efficient, easy of operation, and simple and comparatively inexpensive to construct" (lines 20-23) automatic railway gate. It "is to provide a swinging gate and automatic means of particular construction for operating the gate" (lines 11-14), including illustrations.
- Cotton-Seed-Grading Machine
- Patent for a cotton seed grading machine. Illustrations included.