Document Type and Number:
Japanese Patent JPS57172845
Kind Code:
U
Application Number:
JP6094581U
Publication Date:
October 30, 1982
Filing Date:
April 24, 1981
Export Citation:
International Classes:
E04G13/04; E04G17/02; E04G17/04; (IPC1-7): E04G13/04; E04G17/04