Zhuan li zhi shi yu zhuan li wen xian cha zhao
By: Wang Zheng bian zhu.
Edition: Di 1 ban.
Publisher: Shanghai ke xue ji shu chu ban she; Xin hua shu dian Shanghai fa xing suo fa xing
Published: 1982
Place of publication: Shanghai
Language: chi
Number of pages: 189
Subjects: Patents -- Classification.; Patent searching.
Notes: Includes indexes.