19000001_0259
© Fonds historique / CNRS Photothèque

Appareil oscillographe (avril 1921). Service des inventions.

Reference

19000001_0259

Production year

1921

Max. size

49.45 x 67.73 cm / 300 dpi

Caption

Appareil oscillographe (avril 1921). Service des inventions.

Scientific topics

CNRS Images,

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