Français : Le gisement de Ronchamp-Champagney a été exploité depuis la seconde moitié du XIXe siècle dans 27 puits. Ces installations industrielles sont les puits Arthur de Buyer, à une époque le plus profond de France (-1010m). Numérisation d'un carte postale des années 1910-1920.
Date
20's maxi
Source
Scan d'un carte postale des année 1910-1920
Author
Unknown authorUnknown author
Licensing
Public domainPublic domainfalsefalse
This work is in the public domain in France for one of the following reasons:
Its author (or the last of its authors in the case of a collaboration work) died more than 70 years ago (CPI art. L123-1) and did not benefit from any copyright extension (CPI art. L123-8, L123-9 and L123-10)[1];
It is an anonymous or pseudonymous work (the identity of the author has never been disclosed) or a collective work[2] and more than 70 years have passed since its publication (CPI art. L123-3);
It is the recording of an audiovisual or musical work already in the public domain, and more than 50 years have passed since the performance or the recording (CPI art. L211-4).
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↑Copyright extensions must be considered only in the case of musical works and of authors Mort pour la France (died during conflict, in the service of France). In other cases, they are included in the 70 years post mortem auctoris length (see this statement of the Cour de Cassation).
↑The collective work status is quite restrictive, please make sure that it is actually established.
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.
{{Information |Description={{fr|1=Le gisement de Ronchamp-Champagney a été exploité depuis la seconde moitié du XVIII{{ème}} siècle dans 23 puits. Ces installation industrielles sont les puits Arthur de Buyer, à une époque le plus profonjd de Fra
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