Pierre Germain,French inventor. Germain invented a microphone,filing a patent in the USA in 1899 which was granted in 1904. Germain was inspector of telegraphs in Fontenay aux Roses,in the Seine Departement,France. Artwork from the 25th volume (first period of 1900) of the French popular science weekly 'La Science Illustree' | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 3980 px × 4849 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |