Mezhdunarodnoto sŭtrudnichestvo v oblastta na izobretatelstvoto
Subtitle: [izledvane]
By: Vladimir Vrana, Georgi Sarakinov.
Contributors: Sarakinov, Georgi.
Series: Biblioteka - Bŭlgarska tŭrgovsko-promishlena palata ; kn. 129; Biblioteka (Bŭlgarska tŭrgovsko-promishlena palata) ;; kn. 129.
Publisher: Bŭlg. tŭrg.-prom. palata
Published: 1979
Place of publication: Sofii͡a
Language: bul
Number of pages: 46
Subjects: Inventions -- Europe, Eastern.; Patent laws and legislation -- Europe, Eastern.