X-ray diffraction (XRD)
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File:Pile bouton au lithium 3v CR2025 - 1.jpg - Wikimedia Commons
The Leclanché battery, part of Saft's history, Saft
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Basics of viscometry
Page:Bouton - Nim.djvu/5 - Wikisource, the free online library
How to measure viscosity
Basics of viscometry
Page:Bouton - Nim.djvu/4 - Wikisource, the free online library
Pile bouton — Wikipédia