Document Type and Number:
Japanese Patent JPS4118896
Kind Code:
Y1
Application Number:
JP5736964U
Publication Date:
September 03, 1966
Filing Date:
July 13, 1964
Export Citation:
International Classes:
E01B25/08; E01B29/00; E01B37/00; (IPC1-7): E01B25/08; E01B29/00