Edison-fonometri - laite, jolla mekaaninen työ saadaan puheella "" Luonnossa"" 1878.(The Edison phonometer - device by means of which a mechanical work is obtained by speech in “” Nature”” 1878.)Unknown artist |
€ 144.61
Enthält 25.5% MwSt.
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Päiväämätön · drawing
· Kuvan tunniste: 990891
Private Collection / Bridgeman Images |
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