Document Type and Number:
Japanese Patent JPS4953004
Kind Code:
A
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Application Number:
JP7039373A
Publication Date:
May 23, 1974
Filing Date:
June 21, 1973
Export Citation:
International Classes:
G03D15/00; G03B15/00; G03B31/02; G06F17/00; G11B7/00; G11B7/003; (IPC1-7): G03B31/02