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270:Technology companies disestablished in 1981
308:This list may not reflect recent changes
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321:3D printing
291:(11 C, 3 P)
257:(6 C, 11 P)
334:Categories
274:(3 C, 3 P)
233:(1 C, 1 P)
209:(5 C, 2 P)
185:(1 C, 3 P)
150:2030s
145:2020s
140:2010s
135:2000s
130:1990s
124:1980s
118:1970s
113:1960s
108:1950s
103:1940s
98:1930s
350:1981
87:1986
82:1985
77:1984
72:1983
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62:1981
57:1980
52:1979
47:1978
42:1977
37:1976
316:0–9
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242:T
218:R
194:C
170:B
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