Total shipments for SIC 3669 were valued more than $4.2 billion in 1997
Companies under SIC 3669 employed 25,000 workers in 1997
In 1997 there were about 500 companies
The value of industry shipments totaled $4.6 billion in 2000, compared to $4.1 billion in 1997.
SIC 3669 covers makers of railroad signaling devices
SIC 3669 covers makers of traffic control equipment
Establishments primarily engaged in manufacturing electric signal equipment are classified in SIC 3669: Communications Equipment, Not Elsewhere Classified
Overall shipments for the industry were valued at more than $3.4 billion
2001 industry shipments were valued at $480 million.
In 2000, the value of shipments within the fluid power industry totaled $6.7 billion.
The value of laminated aluminum foil shipments in 2000 was $1.43 billion
In 2001, there were 431 firms operating 468 establishments in this industry
The value of shipments in the ordnance and accessories industry was $1.31 billion in 1991.