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in subjects: "butter churns"  
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Churn.

Description: Patent for an automatic butter churn with illustrations.
Date: January 28, 1902
Creator: Fitzhugh, James, S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Churn Power.

Description: Patent for a new and improved motorized butter churn. This design is of "a simple and efficient device for converting a rotary into a reciprocating motion, which may be either vertical or horizontal, and is especially adapted to the various kinds of churns, washing-machines, and the like now in the market" (lines 13-18).
Date: January 4, 1881
Creator: Clark, William
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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