UNT Libraries Government Documents Department - 3 Matching Results

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Improvement in Seed-Planters.
Patent for a seed feeder using a tube connected to a revolving cylinder at the bottom of the hopper to deposit the seeds into the earth, including illustration.
Improvement in Seeding-Machines.
Patent for the improvement of the seed-box so the seeds are properly distributed into the soil while preventing the seed from clogging the machine, including illustration.
Pessary.
Patent for a ring pessary used as a female birth control device, including illustration.
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