Document Type and Number:
Japanese Patent JPH0340161
Kind Code:
B2
Application Number:
JP14257583A
Publication Date:
June 18, 1991
Filing Date:
August 05, 1983
Export Citation:
International Classes:
E01C7/08; E01C3/00; E01C3/04; E01C7/30; E01C13/00; E01C13/02; E01C13/06
Next Patent: JPH0340162