UNT Libraries Government Documents Department - 4 Matching Results

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Door.

Description: Patent for a door "that can be secured in either open or closed position either from the exterior or interior of the building on which the door is mounted" (lines 9-12) including instructions and illustrations.
Date: May 19, 1914
Creator: Niemann, Otto
Item Type: Refine your search to only Patent

Vulcanizer

Description: Patent for a product that vulcanizes the rubber of tire casings more easily. It holds a combustible fuel for heating and has a curved design to better fit the shape of the tire.
Date: April 17, 1914
Creator: Lawrence, Arthur E.
Item Type: Refine your search to only Patent
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