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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5139536
Kind Code:
B1
Application Number:
JP4712571A
Publication Date:
October 28, 1976
Filing Date:
June 28, 1971
Export Citation:
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International Classes:
G03B23/00; G03B23/06; H01H19/58; (IPC1-7): G03B23/06