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4 résultats pour : fluorine

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Fluorine factory in Rheinfelden, 1964
UMG26A13_432

Fluorine factory in Rheinfelden, 1964

Fricktal; Protest against damages by fluorine; 1958.
UMG25A29_050

Fricktal; Protest against damages by fluorine; 195...

Fricktal; Protest against damages by fluorine; 1958.
UMG25A07_429

Fricktal; Protest against damages by fluorine; 195...

Henri Moissan making diamonds nown
UMG20A64_422

Henri Moissan making diamonds nown