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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5243434
Kind Code:
U
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Application Number:
JP13093775U
Publication Date:
March 28, 1977
Filing Date:
September 23, 1975
Export Citation:
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International Classes:
G03B31/04; G03B31/00; (IPC1-7): G03B31/00



 
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