From a 1914 issue of Pharmaceutical Era
A corkscrew presenting some novel features is the recent invention of John H. Kissinger, Spokane, Wash. (Patent No. 1,110,210). As shown in the accompanying illustration,
it comprises spaced parallel members forming a lever, each of the members being curved upwardly adjacent one end having a portion extending outwardly therefrom, the forwardly extended portion having longitudinally disposed slots, the upper wall of the slots being formed with alined recesses opening in a downward direction, an arm adjustable in said slots and adapted for interchangeable engagement with the recesses, the arm forming a fulcrum for the lever, and a corkscrew pivoted between the members rearwardly of the arm described. The fulcrum arm is pivotally mounted between the bifurcated ends of the sheet metal lever and adapted to be swung upwardly and over the bifurcated end portions to folded position. Suitable means are provided for retaining the device in folded position.
This would be the Kissinger patent awarded September 8, 1914.
If you have a Kissinger corkscrew, I would love to add it to the collection. Drop me a line!