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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5214699
Kind Code:
Y2
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Application Number:
JP10522973U
Publication Date:
April 02, 1977
Filing Date:
September 10, 1973
Export Citation:
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International Classes:
G03B27/62; G02F1/13; G03B13/04; G03B13/10; G03B13/24; G03B15/00; G03B17/20; G03B19/12; (IPC1-7): G03B13/10; G03B15/00; G03B17/20