Nauchno-tekhnicheska ekspertiza na izobretenii͡a︡ta
By: Neli Benbasat.
Publisher: [s.n.]
Published: 1987
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 353
Subjects: Inventions -- Bulgaria.
Notes: Includes bibliographical references.
At head of title: Vissh mashinno-elektrotekhnicheski institut. Vissha sleddiplomna shkola po patentno delo.
Date of publication on cover, 1988.