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Patents -- Economic aspects -- United States -- History. / https://id.loc.gov/authorities/subjects/sh85098655 https://id.loc.gov/authorities/subjects/sh99005484 https://id.loc.gov/authorities/names/n78095330-781 https://id.loc.gov/authorities/subjects/sh99005024 : Khan, B. Zorina.
2005
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Patents -- Europe -- Information services. / https://id.loc.gov/authorities/subjects/sh85098655 https://id.loc.gov/authorities/subjects/sh85045631-781 https://id.loc.gov/authorities/subjects/sh00006253
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