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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS55169769
Kind Code:
U
Application Number:
JP6688879U
Publication Date:
December 05, 1980
Filing Date:
May 21, 1979
Export Citation:
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International Classes:
G07C15/00; G02B6/00; (IPC1-7): G07C15/00; G02B5/14



 
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