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5 Jan 1904 Jahr - Vacuum tube

Beschreibung:

Flemming
diode
electron tube/valve
thermionic tube/valve

Zugefügt zum Band der Zeit:

History of Computing

ByJanna Hawkins
2 Nov 2018
0
0
1241

Datum:

5 Jan 1904 Jahr
Jetzt
~ 121 years ago
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