Edison screw fitting of an energy-saving light bulb. This is a type of light bulb connector developed by Thomas Edison in 1909 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Horrell, Steve |
Bildgröße: | 5364 px × 5229 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |