UNT Libraries Government Documents Department - 4 Matching Results

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Automatic Fire Alarm
Patent for an automatic fire alarm. Illustration included.
Car-Couplings
Patent for equipment to improve car-coupling to allow "automatically couple the cars, which can be readily uncoupled with-out going between the cars" (line 14-16).
Seed Planter
Patent for seed planter. Illustration included.
Whiffletree-Clip.
A patent for a whiffletree hook and accompanying attachments meant to replace lap-links in harnesses. Illustrations and material recommendations included.
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