UNT Libraries Government Documents Department - 3 Matching Results

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Land Grader and Ditcher
Patent for a land grader and ditcher that is durable and easy to use to ditch a large area and the scraping blade can be easily removed for cleaning, repairs or other reasons.
Saw-Set.
Patent for an improved saw set with improved jaw design to improve locking of saw. This saw set makes up part of a saw filing machine.
Speculum
Patent for an improved version of the speculum, a gynecological instrument, including illustrations.
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