2.
Patents, Invention and Economic Change : Data and Selected Essays
by Schmookler, Jacob, Griliche...
ISBN: 9780783760902
List Price: $96.10
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Patents, Inventions and Economic Change
by Schmookler, Jacob, Griliche...
ISBN: 9780674657700
List Price: $28.50
6.
Patents, Invention, and Economic Change : Data and Selected Essays
by Schmookler, Jacob, Griliche...
ISBN: 9780674432840
List Price: $65.00