Document Type and Number:
Japanese Patent JPS507859
Kind Code:
Y1
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Application Number:
JP9584370U
Publication Date:
March 08, 1975
Filing Date:
September 28, 1970
Export Citation:
International Classes:
G03B21/16; G03B21/20; (IPC1-7): G03B21/16; G03B21/20
Next Patent: JPS507860