Document Type and Number:
Japanese Patent JPS5214651
Kind Code:
Y2
Application Number:
JP7882974U
Publication Date:
April 02, 1977
Filing Date:
July 03, 1974
Export Citation:
International Classes:
G11B21/06; G11B25/02; (IPC1-7): G11B21/06; G11B25/02
Previous Patent: JPS5214650
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