Document Type and Number:
Japanese Patent JPS5291249
Kind Code:
U
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Application Number:
JP17726875U
Publication Date:
July 07, 1977
Filing Date:
December 29, 1975
Export Citation:
International Classes:
G09B19/20; A41H3/00; A41H31/00; (IPC1-7): G09B19/20; A41H31/00