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1. (WO1997015255) A LIQUID CRYSTAL SHUTTER AND A LIGHT SHIELDING DEVICE INCLUDING SUCH A SHUTTER
Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
China 25.10.199696197858.9
European Patent Office 06.04.19981996935759Published: 19.08.1998
Withdrawn: 03.01.2002
United States of America 23.04.199809051930
Japan 24.04.19981997516546