World patent information
World patent information
- 1980
- 144p
- Patent information International patent classification Patent specifications
International Journal for Patent Information and Documentation Vol.2 No.1 Jan.1980
4067
608.3(082) WOR
Engineering & Technology
608.3(082)
International Journal for Patent Information and Documentation Vol.2 No.1 Jan.1980
4067
608.3(082) WOR
Engineering & Technology
608.3(082)