Document Type and Number:
Japanese Patent JPS5137805
Kind Code:
U
Application Number:
JP11038774U
Publication Date:
March 22, 1976
Filing Date:
September 12, 1974
Export Citation:
International Classes:
G10K15/04; G10K9/12; H04M9/00; (IPC1-7): H04H9/00; G10K9/12
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