History--Bell "Dew Line" defense network [telecom]
In the 1950s, AT&T (Bell System) contributed toward building a network of radar stations in the far north.
LIFE magazine had various ads and articles about it:
Western Electric advertisements, 1955, 1957:
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1956 article
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1963 article
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Posted 5 years ago by HAncock4 in General Telecommunications Forum