Document Type and Number:
Japanese Patent JPS63108935
Kind Code:
U
Application Number:
JP19973186U
Publication Date:
July 13, 1988
Filing Date:
December 29, 1986
Export Citation:
International Classes:
E04G23/02; E04F13/02; E04F21/00; (IPC1-7): E04F21/00; E04G23/02