Means for Increasing the Intensity of Electrical Oscillations 138 0 Download here USA090 - US685012 Print Rate this article: No rating No.USA90Patent685,012Year1901Date of ApplicationOctober 22, 1901Patent TitleMeans for Increasing the Intensity of Electrical Oscillations Documents to download USA090 - US685012 (.pdf, 249.92 KB) - 186 download(s)