Išradyba ir patentotyra
Subtitle: [vadovėlis]
By: P. Kasperavičius.
Edition: 2., pataisytas ir papildytas leidimas.
Publisher: Mokslas
Published: 1976
Place of publication: Vilnius
Language: lit
Number of pages: 233
Subjects: Inventions -- Soviet Union.; Patents -- Soviet Union.
Notes: Bibliography: p. 223.
Includes index.