Document Type and Number:
Japanese Patent JPS5224785
Kind Code:
B2
Application Number:
JP128473A
Publication Date:
July 04, 1977
Filing Date:
December 28, 1972
Export Citation:
International Classes:
E04H1/00; E01C3/00; E02B17/00; E04B1/34; E04B1/35; (IPC1-7): E04H1/00; E02B17/00