Kaejŏng t'ŭkhŏ kwan'gye pŏmnyŏngjip tŭng
By: P'yŏnch'an Im Sŭng-yong
Edition: Ch'op'an
Published: 2009
Language: kor
Number of pages: 188
ISBN-13: 9788991368866
Subjects: Patent laws and legislation