Mulchil tʻŭkhŏ chedo ŭi kochʻal
By: [pʻy̆onjip Tʻŭkhŏchʻŏng Simsa 3-kuk]
Publisher: Tʻŭkhŏchʻŏng
Published: 1986
Place of publication: [Seoul]
Language: kor
Number of pages: 248
Subjects: Patents; Patent practice