Show Multiplex Telegraph Invention i Boulder Colo Nov No William Dunne Duane professor of ot phy physics la nt at tho tiro state university has hal just been granted a patent for tor an Invention by which a b i i large number of ot telegraph messages can bo sent ent over one wire and return I at the same time In tint the physical laboratory at the tha I 1 I I II Ir i II 1 I r J JI I e university It Is III said ho he has hal had a 0 amany ay many on ns eighteen circuits working on the tiro name wire ho return all nil ut lit UK th lh carne time On any of ot linen thelo circuit lt tho the Marco Morau oar can bo be i and used exactly As its I with the tho sla Single tle wire now In inc Ule Dr Is based on ho Iho the of ot lug Ing motors |