40 years ago. (Pastimes).

Advanced Materials & Processes,  September, 2002  

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September 1962: The new EMU-3G is the culmination of over twenty years of RCA electron microscope leadership.... Capable of direct electron magnifications of up to 200,000 times, the EMU-3G combines flexibility of operation with high resolving power and reliability.... -- From "RCA Announces the new EMU-3G Electron Microscope," an advertisement of Radio Corp.

of America, Camden, N.J. In what may be a trend, two major steel companies have recently announced new grades of free-machining steels. Both are based on the familiar leaded and resulfurized grades, but the United ...

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