Telecommunication Journal, 32. sējums,265-550. lapaInternational Telecommunication Union., 1965 |
No grāmatas satura
1.–3. rezultāts no 77.
509. lappuse
... tele- phone channels on one pair of wires . 1919 SCHOTTKY ( 1886 ) designs the tetrode ( 4 - electrode tube ) . 1920 The Swede BETULANDER creates the first crossbar switching system . 1921 The American Professor W. G. CADY ( 1874 ) ...
... tele- phone channels on one pair of wires . 1919 SCHOTTKY ( 1886 ) designs the tetrode ( 4 - electrode tube ) . 1920 The Swede BETULANDER creates the first crossbar switching system . 1921 The American Professor W. G. CADY ( 1874 ) ...
510. lappuse
... tele- graph cables . The Canadian CREED ( 1892-1958 ) per- fects the teleprinter or teletype machine which was to lead to the setting up of modern telex networks . 1925 Sir Edward Appleton , already mentioned , achieves with success his ...
... tele- graph cables . The Canadian CREED ( 1892-1958 ) per- fects the teleprinter or teletype machine which was to lead to the setting up of modern telex networks . 1925 Sir Edward Appleton , already mentioned , achieves with success his ...
528. lappuse
... TELE , review of the Swedish Telecommunications Administration TELEPHONE RATES 8 am : and - 1 5 threa. Ingvar ROOS ... tele- phone conditions in the different countries is given . Belgium Belgium holds a prominent position as regards tele ...
... TELE , review of the Swedish Telecommunications Administration TELEPHONE RATES 8 am : and - 1 5 threa. Ingvar ROOS ... tele- phone conditions in the different countries is given . Belgium Belgium holds a prominent position as regards tele ...
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