Zhuan li shen qing wen jian de zhuan xie yu shen cha yao dian
By: Huang Min zhu
Edition: Di 1 ban
Publisher: Zhuan li wen xian chu ban she; Xin hua shu dian Beijing fa xing suo fa xing
Published: 1997
Place of publication: [Peking]
Language: chi
Number of pages: 152
Subjects: Patent practice