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File:Signature Paul Langevin.svg
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Ficheiro:Signature Paul Langevin.svg
Description
Signature
Paul
Langevin
.
svg
Français :
Signature
de
Paul
Langevin
. Date 15 February 2020 Source File:
Signature
_de_
Paul
_
Langevin
.jpg Author
Paul
Langevin
