Patent Agency Course...Beijing, February 23 to March 6, 1981.
1981
详细记录
标题Patent Agency Course...Beijing, February 23 to March 6, 1981.
索书号
WIPO/627
日期Geneva : WIPO, 1981.
描述
1 v. (various pagings).
备注
"Organized by the World Intellectual Property Organization (WIPO) at the request of the China Council for the Promotion of International Trade"