1930年，位于新泽西州哈里森市的那间最初生产爱迪生灯泡的制造厂重组后，为通用的子公司——美国无线电公司生产电子管。
The Lamp Works factory in Harrison N.J. originally constructed for Edison's bulbs was repurposed in 1930 to manufacture radio tubes for GE subsidiary RCA.
引领潮流的公司，诸如美国无线电公司(RCA)、通用汽车，股价飞涨。
Companies who had pioneered these advances, like Radio Corporation of America (RCA) and General Motors, saw their stocks soar.
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