Document Type and Number:
Japanese Patent JPS4425829
Kind Code:
Y1
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Application Number:
JP1059266U
Publication Date:
October 29, 1969
Filing Date:
February 07, 1966
Export Citation:
International Classes:
G03B21/00; G03B17/26; G03B31/00; (IPC1-7): G03B31/00; G03B17/26