Image: LipmanPencilEraserPatent
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Description: From US Patent 19783 Combination of Lead-Pencil and Eraser by L. Lipman, March 1958.
Title: LipmanPencilEraserPatent
Credit: Transferred from en.wikipedia to Commons. Transfer was stated to be made by User:Ddxc.
Usage Terms: Public domain
License: Public domain
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