Document Type and Number:
Japanese Patent JPS5238022
Kind Code:
Y2
Application Number:
JP9049172U
Publication Date:
August 30, 1977
Filing Date:
July 31, 1972
Export Citation:
International Classes:
E04F19/04; B63B25/02; B63B29/02; E04B2/82; (IPC1-7): E04B2/82; B63B25/02; E04F19/04