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Start Over You searched for: Author Commerce Dept. Remove constraint Author: Commerce Dept. Catalog Issue Year Decade 1970 - 1979 Remove constraint Catalog Issue Year Decade: 1970 - 1979 Sudoc Stem C 21.2 Remove constraint Sudoc Stem: C 21.2

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2. General information concerning patents.

4. Obtaining information from patents.

5. General information concerning patents.

8. Obtaining information from patents.

9. General information concerning patents.

10. General information concerning patents.