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May 19th
Radiotelephone service from the United States to China began on this day in 1937.

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IEEE Global History Network > Special Pages > Log

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Combined display of all available logs of GHN. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

15:46, 18 January 2013 Administrator1 (Talk | contribs) marked revision 84189 of Category:Bipolar transistor circuits patrolled (automatic) ‎

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