NAICS
334411: Electron Tube Manufacturing
This U.S. industry comprises establishments primarily engaged in
manufacturing electron tubes and parts (except glass blanks). Examples
of products made by these establishments are cathode ray tubes (i.e.,
picture tubes), klystron tubes, magnetron tubes, and traveling wave
tubes.
The data published with NAICS code 334411 include the following
SIC industries:
3671 Electron tubes
