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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS414699
Kind Code:
Y1
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Application Number:
JP1978765U
Publication Date:
March 16, 1966
Filing Date:
March 15, 1965
Export Citation:
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International Classes:
G03B31/04; G03B31/00; (IPC1-7): G03B31/00



 
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