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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5172041
Kind Code:
U
Application Number:
JP14664674U
Publication Date:
June 07, 1976
Filing Date:
December 03, 1974
Export Citation:
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International Classes:
G03B21/64; G03B21/00; G03B31/06; (IPC1-7): G03B21/64; G03B21/00
Domestic Patent References:
JPS3919861Y1