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Document Type and Number:
Japanese Patent JPS5313364
Kind Code:
Y1
Application Number:
JP4074476U
Publication Date:
April 11, 1978
Filing Date:
April 01, 1976
Export Citation:
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International Classes:
G03B31/04; G11B31/00; (IPC1-7): G03B31/04; G11B31/00
Domestic Patent References:
JP30000030A
JPS3811887Y1



 
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