Document Type and Number:
Japanese Patent JPS4736219
Kind Code:
U
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Application Number:
JP3764171U
Publication Date:
December 22, 1972
Filing Date:
May 11, 1971
Export Citation:
International Classes:
G11B15/17; G11B15/02; G11B15/66; G11B15/675; (IPC1-7): G11B15/66; G11B15/02