Document Type and Number:
Japanese Patent JPS568965
Kind Code:
Y2
Application Number:
JP7288876U
Publication Date:
February 27, 1981
Filing Date:
June 04, 1976
Export Citation:
International Classes:
E01C5/00; E01C1/04; E01F9/50; E01F9/506; E01F9/529; E01F9/535; E01F9/553; (IPC1-7): E01F9/04
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