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File:Sampson Mordan 1822 pencil-holders patent.png

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Description
English: Detail of the specification of the patent granted in december 1822 to Sampson Mordan and John Hawkins, for improvements on pencil-holders
Date
Source The Repertory of patent inventions: and other discoveries and improvements in arts, manufactures, and agriculture; being a continuation, on an enlarged plan, of the Repertory of arts & manufactures, a work originally undertaken in the year 1794, and still carried on, with a view to collect, record, and bring into public notice, the useful inventions of all nations. Volume II
Author Published for the proprietors by T. and G. Underwood
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current12:06, 16 January 2012Thumbnail for version as of 12:06, 16 January 2012864 × 550 (223 KB)Lobo{{Information |Description ={{en|1=Detail of the specification of the patent granted in december 1822 to Sampson Mordan and John Hawkins, for improvements on pencil-holders}} |Source =The Repertory of patent inventions: and other discoveries an

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