Document Type and Number:
Japanese Patent JPS6342385
Kind Code:
Y2
Application Number:
JP596278U
Publication Date:
November 07, 1988
Filing Date:
January 21, 1978
Export Citation:
International Classes:
G04B37/08; G04B37/10; G04C3/00; G04G21/00; G04G99/00; H01H13/02; H01H13/06; (IPC1-7): G04G1/00
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