Document Type and Number:
Japanese Patent JPS50841
Kind Code:
Y1
Application Number:
JP4966370U
Publication Date:
January 10, 1975
Filing Date:
May 20, 1970
Export Citation:
International Classes:
G09B5/06; G09B5/00; G11B3/78; G11B21/04; G11B25/04; G11B31/00; (IPC1-7): G09B5/00; G11B3/78; G11B21/04
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