Fig. 6.HERZ LONG DISTANCE TELEPHONE. Fig. 7. ployment of condensers as receivers, the alternation of thecurrent in the line, and the system of derived circuits.This does not form, altogether, a new method of tele-phonic communication, but either of them may be em-ployed in cases where their…
Patented · Silk · Patents · Apparatus · Frame · Upper · Scientific American · Patent issued · Main frame · Silk culture · Sewing machine · Address munn · Raw silk · Sewing silk · Side bars · Fluid density
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
