Document Type and Number:
Japanese Patent JPS4116614
Kind Code:
Y1
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Application Number:
JP6827764U
Publication Date:
August 01, 1966
Filing Date:
August 29, 1964
Export Citation:
International Classes:
G04B29/02; G04B31/00; G04C3/08; G04C5/00; (IPC1-7): G04B31/00; G04C5/00