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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS649216
Kind Code:
U
Application Number:
JP10410587U
Publication Date:
January 18, 1989
Filing Date:
July 06, 1987
Export Citation:
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International Classes:
G02C3/04; G02C5/08; (IPC1-7): G02C3/04; G02C5/08
Domestic Patent References:
JPS4832064B11973-10-03
JPS601121B21985-01-12
JPS5246741B21977-11-28



 
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