4 treff

Radio broadcast coverage of city areas
Espenschied, Lloyd
Bok Engelsk 1927
Transatlantic radio telephone transmission
by Lloyd Espenschied, C.N. Anderson and A...
Bok Engelsk 1926
Transatlantic radio telephony
by H.D. Arnold and Lloyd Espenschied
Bok Engelsk 1923
Radio extension of the telephone system to ships at sea
by H.W. Nichols and Lloyd Espenschied
Bok Engelsk 1923