Vynálezectví a zlepšovatelství v otázkách a odpovědích
By: Vladimír Pítra.
Series: Na pomoc iniciativě pracujících
Publisher: Práce
Published: 1981
Place of publication: Praha
Language: cze
Number of pages: 50
Subjects: Patent laws and legislation -- Czechoslovakia -- Miscellanea.; Inventions, Employees' -- Czechoslovakia -- Miscellanea.; Technological innovations -- Law and legislation -- Czechoslovakia -- Miscellanea.