UNT Libraries Government Documents Department - 2 Matching Results
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- Churn-Operating Device.
- Patent for a churn operating device to make the process more simple and efficient for the use of producing butter in the shortest possible time.
- Surveyor's Instrument.
- Patent for a new and improved surveyor's instrument. This design consists in "[t]he instrument for surveying and analogous purposes, consisting of protractor, right-angled piece, and [additional] piece, the two latter pivoted to move independently on the protractor" (lines 9-13).