Nye gasegenskaber: argon bruges til at fylde en halvwatts pære. Anonym illustration fra 1925. Privat samling.(New gas properties: argon is used to fill a half watt bulb. Anonymous illustration from 1925. Private collection.)Anonymous Anonymous |
| € 130.2
Inklusive 25% moms |
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1925 · Engraving
· Billed-ID: 918318
Private Collection / Bridgeman Images |
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