Edison-fonometeret - enhed, ved hjælp af hvilken et mekanisk værk opnås ved tale i "" Nature"" 1878.(The Edison phonometer - device by means of which a mechanical work is obtained by speech in “” Nature”” 1878.)Unknown artist |
| € 155.23
Inklusive 25% moms |
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19. århundrede
· drawing
· Billed-ID: 990891
Private Collection / Bridgeman Images |
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