The data published with NAICS code 334516 include the following SIC industries:
3699 Electrical equipment and supplies, n.e.c. (pt)
3826 Analytical instruments
This definition comes from the 1997 NAICS manual. However, for this industry, the 1997 Economic Census Manufacturing implemented the conversion to NAICS differently. Data for NAICS industry 334516 include establishments primarily engaged in the manufacture of analytical and scientific laser products.
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