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- 90212489 contributor B6271762.
- 90212489 contributor B6271763.
- 90212489 created "1989.".
- 90212489 date "1989".
- 90212489 date "1989.".
- 90212489 dateCopyrighted "1989.".
- 90212489 description "Includes bibliographical references.".
- 90212489 extent "92 p. ;".
- 90212489 issued "1989".
- 90212489 issued "1989.".
- 90212489 language "bul".
- 90212489 publisher "Sofii︠a︡ : Federat︠s︡ii︠a︡ na nauchno-tekhn. druzhestva,".
- 90212489 spatial "Bulgaria.".
- 90212489 subject "Inventions Bulgaria.".
- 90212489 subject "KJM1203 .A28 1989".
- 90212489 subject "Patent laws and legislation Bulgaria.".
- 90212489 subject "Technological innovations Law and legislation Bulgaria.".
- 90212489 title "Normativni aktove po izobretatelska i rat︠s︡ionalizatorska deĭnost.".
- 90212489 type "text".