Document Type and Number:
Japanese Patent JPH022722
Kind Code:
Y2
Application Number:
JP11055383U
Publication Date:
January 23, 1990
Filing Date:
July 16, 1983
Export Citation:
International Classes:
E01C7/08; E01C3/06; E01C7/10; E01C7/26; E01C7/32; (IPC1-7): E01C7/10; E01C3/06; E01C7/32
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