Document Type and Number:
Japanese Patent JPS5326120
Kind Code:
Y2
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Application Number:
JP12949673U
Publication Date:
July 04, 1978
Filing Date:
November 09, 1973
Export Citation:
International Classes:
G02B27/00; G02F1/13; G02F1/1335; G09F9/00; G09F9/30; (IPC1-7): G02F1/13; G09F9/00