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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6394420
Kind Code:
U
Application Number:
JP19017186U
Publication Date:
June 17, 1988
Filing Date:
December 09, 1986
Export Citation:
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International Classes:
G02C3/02; G02B27/22; G02F1/13; H04N13/04; (IPC1-7): G02C3/02; G02B27/22; G02F1/13; H04N13/04