The changing composition of innovative activity in the US —...

The changing composition of innovative activity in the US — a portrait based on patent analysis

Diana Hicks, Tony Breitzman, Dominic Olivastro, Kimberly Hamilton
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Volume:
30
Year:
2001
Language:
english
DOI:
10.1016/s0048-7333(00)00147-5
File:
PDF, 653 KB
english, 2001
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