Document Type and Number:
Japanese Patent JPS5636970
Kind Code:
Y2
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Application Number:
JP2118176U
Publication Date:
August 31, 1981
Filing Date:
February 25, 1976
Export Citation:
International Classes:
E04H17/16; E01B19/00; E01C1/00; E01F8/00; E04B1/82; E04B1/84; E04B1/98; E04H17/14; (IPC1-7): E01F8/00; E04B1/82; E04H17/14