Document Type and Number:
Japanese Patent JPS5423779
Kind Code:
Y2
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Application Number:
JP422375U
Publication Date:
August 14, 1979
Filing Date:
December 28, 1975
Export Citation:
International Classes:
E04H17/22; E01F15/00; E04H6/42; E04H17/00; E04H17/20; (IPC1-7): E01F15/00