File:Phosphorus Furnace by G.C. Landis.jpg
Phosphorus_Furnace_by_G.C._Landis.jpg (576 × 563 pixels, file size: 46 KB, MIME type: image/jpeg)
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Summary
editDescriptionPhosphorus Furnace by G.C. Landis.jpg |
English: Design for an electric arc furnace to produce phosphorus from 1907 patent by G.C. Landis. |
Date | |
Source | book: The Electric Furnace: Its Construction, Operation and Uses By Alfred Stansfield (1914) |
Author | G.C. Landis |
Public domainPublic domainfalsefalse |
This file is in the public domain because It is a patent and also out of date for copyright
This template must not be used to dedicate an uploader's own work to the public domain; CC0 should be used instead. This work must carry justifications for free usability in both the United States and its country of origin. |
Licensing
editPublic domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. 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. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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current | 20:38, 12 May 2014 | 576 × 563 (46 KB) | John Chamberlain (talk | contribs) | {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Design for an electric arc furnace to produce phosphorus from 1907 patent by G.C. Landis.}} |Source = book: The Electric Furnace: Its Construction, Operation and Uses By Alfre... |
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