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File:AmCyc Brick - Hoffmann's Annular Brick Furnace (top).jpg

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Description
English: Woodcut/drawing of an annular brick furnace (top view), designed by Friedrich Hoffman.
Date published 1879
Source The American Cyclopædia, v. 3, 1879, p. 267 (Fig. 1, bottom).
Author unknown artist/Friedrich Hoffman, designer
Permission
(Reusing this file)
Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:AmCyc_Brick_-_Hoffmann%27s_Annular_Brick_Furnace_(top).jpg

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Date/TimeThumbnailDimensionsUserComment
current20:41, 13 March 2014Thumbnail for version as of 20:41, 13 March 2014706 × 695 (169 KB)Library Guy{{Information |Description ={{en|1=Woodcut/drawing of an annular brick furnace (top view), designed by Friedrich Hoffman.}} |Source =''The American Cyclopædia'', v. 3, 1879, p. 267 (Fig. 1, bottom). |Author =unknown artist/Friedrich...

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