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Document Type and Number:
Japanese Patent JPS5329144
Kind Code:
Y2
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Application Number:
JP8240473U
Publication Date:
July 21, 1978
Filing Date:
July 13, 1973
Export Citation:
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International Classes:
G03B21/10; G03B21/00; G03B23/00; G03B23/02; G11B15/18; G11B25/06; (IPC1-7): G03B23/00; G03B21/00; G11B25/06



 
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