The National Geographic Magazine, Volume 95National Geographic Society, 1949 - Geography Indexes kept up to date with supplements. |
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Page 11
Making television history , first coverage of air - sea maneuvers demonstrates value of research by RCA Laboratories to our armed forces . Now television " stands watch " at sea ing destroyer stood by for pos- sible rescues . Picture ...
Making television history , first coverage of air - sea maneuvers demonstrates value of research by RCA Laboratories to our armed forces . Now television " stands watch " at sea ing destroyer stood by for pos- sible rescues . Picture ...
Page 137
A Superb Combination of Zenith Exclusives * ZENITH TELEVISION O SENSATIONALLY different it defies description . Only Zenith Television has the GIANT CIRCLE SCREEN , the argest , brightest , clearest direct - view picture area in any et ...
A Superb Combination of Zenith Exclusives * ZENITH TELEVISION O SENSATIONALLY different it defies description . Only Zenith Television has the GIANT CIRCLE SCREEN , the argest , brightest , clearest direct - view picture area in any et ...
Page 410
... television tube fills gap between popular 10 - inch tubes and the projection - type receivers . The screen on which you usu- ally see television is the face of an electron tube - on which electrons " paint " pictures in motion . And the ...
... television tube fills gap between popular 10 - inch tubes and the projection - type receivers . The screen on which you usu- ally see television is the face of an electron tube - on which electrons " paint " pictures in motion . And the ...
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