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1. (WO1998002990) SPIRAL SCRAMBLING
Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
China 14.07.199797196489.0
Republic of Korea 30.11.19981019980709747Published: 25.03.2000
Granted: 26.03.2002
European Patent Office (EPO) 09.12.19981997936964Published: 06.05.1999
Granted: 03.11.2004
Canada 17.12.19982258362