Tekhnichesko tvorchestvo
Subtitle: kratŭk kurs za izobretateli i rat͡s︡ionalizatori : [sbornik lekt͡s︡ii
By: Tamara Stancheva ... et al. ; sŭstavitel Danail Atanasov].
Contributors: Stancheva, Tamara.; Atanasov, Danail.
Series: V pomosht na izobretatelite i rat͡s︡ionalizatorite
Publisher: Profizdat
Published: 1981
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 99
Subjects: Inventions -- Bulgaria.; Technological innovations -- Law and legislation -- Bulgaria.; Patent laws and legislation -- Bulgaria.; Patent laws and legislation.
Notes: Bibliography: p. 98.