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Patent archive and salesman's model of improved farm gate
Lancaster: Isaac Burkholder, 1919. Edition Unknown.. as issued.. All items in very good condition.. var. sizes. In Sept. of 1919 Isaac Burkholder was granted a patent on a new self operating farm gate. The patent was purchased by James Weinhold in June of 1933 for $230.. Weinhold had originally been a sales agent for Burkholder. The archive has patent transfer documents, and correspondence between Burkholder and Weinhold, and illustrated trade cards for the device. The correspondence is tastimony to the hard times during the depression and Burkholder's decision to sell his invention. There is also a 1:20 scaled, operating model of the farm gate assembly in a purpose built wooden box.
      [Bookseller: Palinurus Antiquarian Books ]
Last Found On: 2017-06-09           Check availability:      ABAA    


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