Document Type and Number:
Japanese Patent JPS5547957
Kind Code:
Y2
Application Number:
JP1327278U
Publication Date:
November 10, 1980
Filing Date:
February 07, 1978
Export Citation:
International Classes:
E02D3/115; E02D19/14; E21D1/12; E21D9/04; (IPC1-7): E02D19/14; E02D3/115; E21D1/12