Thomas Edisons forbedrede form for JW Trowbridges elektriske dynamometer, 1879(Thomas Edisons improved form of JW Trowbridges electric dynamometer, 1879)Unbekannt |
| € 152.4
Inklusive 25% moms |
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1879 · engraving
· Billed-ID: 778035
Oxford Science Archive/Heritage Images |
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