Elektro

Geigerzähler
2019-01-12 21:26:40
by Hans Geiger
Hand drawn audio waves
2025-02-25 03:24:27
HTML
by Arseni Michailowitsch Awraamow
Vervielfältigungsmaschine
2025-05-24 10:16:06
by David Gestetner
Colpitts-Schaltung
2019-03-06 18:18:49
by Edwin H. Colpitts
Philips
2021-10-07 08:49:40
SVG
by Anton Philips


no copyright 2025 Re:Public Domain

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