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in subjects: "Agricultural instruments"  
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Pusher Attachment for Tractors.

Description: Patent for an improved tractor attachment that is efficient to operate. The attachment can be fixated to connect both traditional tractors and grain headers.
Date: August 24, 1920
Creator: Records, Paul A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Oil-Expressing Cage and Press.

Description: Patent for improvements to Oil Expressing Cages and Presses "for the extraction of oil from cotton seed cake or the like" (lines 11-12) that allows for multiple oil cakes and press plates which can be "readily inserted in or removed from the press as occasion requires" (lines 22-23).
Date: October 26, 1920
Creator: Henry, Nelson B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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