New inventions and patents in highway construction

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[11] ESA INVENTIONS AND PATENTS
KALLENBACH, PA
OOSTERLINCK, R
ESA BULLETIN-EUROPEAN SPACE AGENCY, 1986, (48) : 29 - 34
[12] INVENTIONS PATENTS AND MONOPOLY
不详
COLUMBIA LAW REVIEW, 1947, 47 (04) : 705 - 705
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ILLINOIS LAW REVIEW, 1948, 43 (02): : 271 - 273
[14] Inventions (applications and patents)
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[16] PATENTS AND THE PROPAGATION OF INVENTIONS
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ECONOMIE APPLIQUEE, 1967, 20 (04): : 585 - 603
[17] INVENTIONS, PATENTS AND MONOPOLIES
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[18] PATENTS FOR CHEMICAL INVENTIONS
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[20] Patents and the Dissemination of Inventions
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