Document Type and Number:
Japanese Patent JPS5234104
Kind Code:
Y2
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Application Number:
JP11546272U
Publication Date:
August 04, 1977
Filing Date:
October 06, 1972
Export Citation:
International Classes:
G03B21/08; G03B21/06; G03B21/132; (IPC1-7): G03B21/08; G03B21/132
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