Bilder Videos

Charles Proteus Steinmetz Bilder ❘ Science Photo Library

Charles Steinmetz and Guglielmo Marconi
11827005 - Charles Steinmetz and Guglielmo Marconi
C. P. Steinmetz,German-American engineer
11831156 - C. P. Steinmetz,German-American engineer
C. P. Steinmetz,German-American engineer
11831155 - C. P. Steinmetz,German-American engineer
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