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All Patents of Type: pencil sharpeners
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
593,093Nov. 02, 1897H.A. GuhlApparatus for Sharpening Pencilspencil sharpeners
1,330,105Feb. 10, 1920W.A. WhitneyPencil Sharpenerpencil sharpeners
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