Document Type and Number:
Japanese Patent JPS5550243
Kind Code:
Y2
Application Number:
JP1958676U
Publication Date:
November 22, 1980
Filing Date:
February 20, 1976
Export Citation:
International Classes:
E02D27/00; E04B1/41; E04C5/16; E04G21/12; (IPC1-7): E04B1/41; E02D27/00