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1 Resultat har hittats för "Fil:US_Patent_755840-Jagadish_Chandra_Bose-Detector_for_electrical_disturbances_fig_1-3.png".
Fil:US Patent 755840-Jagadish Chandra Bose-Detector for electrical disturbances fig 1-3.png
English Diagram of a galena crystal radio wave
detector
invented by
Jagadish
Chandra
Bose
...
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