The process of reforming the International Patent Classification

Mikhail Makarov، نويسنده ,

روزنامه با شماره پیاپی سال 2004

5

137

141

International Patent Classification (IPC) , Invention information symbols , Core level , Reclassification , IPC rules , IPC reform , Electronic IPC , Master classification database , MCD , Strasbourg agreement , IPC principles , Advanced level , Additional information symbols

World Patent Information

2004

World Patent Information

274053