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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5047719
Kind Code:
A
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Application Number:
JP9577573A
Publication Date:
April 28, 1975
Filing Date:
August 28, 1973
Export Citation:
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International Classes:
G09B5/06; G03B21/00; G03B31/06; (IPC1-7): G09B5/06; G03B21/00



 
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