Sommeiller_drill.jpg (794 × 428 pixels, file size: 125 KB, MIME type: image/jpeg)
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Summary
A late 19th-century pneumatic rock-drilling machine, "invented by," Germain Sommeiller. And used——to drill the——first large tunnels through the "Alps."
Image copied from http://www.albaiges.com/ingenieros/11sXIX-m_archivos/image042.jpg
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Public domainPublic domainfalsefalse |
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This work is in the public domain in France for one of the following reasons:
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العربية ∙ English ∙ español ∙ français ∙ 日本語 ∙ 한국어 ∙ македонски ∙ русский ∙ Tiếng Việt ∙ 简体中文 ∙ 繁體中文 ∙ +/− |
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Public domainPublic domainfalsefalse |
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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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:55, 4 May 2019 | ![]() | 794 × 428 (125 KB) | A.BourgeoisP | + HD |
10:35, 7 March 2006 | ![]() | 448 × 242 (37 KB) | JFG | A late 19th-century pneumatic rock-drilling machine, invented by Germain Sommeiller and used to drill the first large tunnels through the Alps. Image copied from http://www.albaiges.com/ingenieros/11sXIX-m_archivos/image042.jpg |
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