Document Type and Number:
Japanese Patent JPS4875448
Kind Code:
U
Application Number:
JP12158671U
Publication Date:
September 19, 1973
Filing Date:
December 22, 1971
Export Citation:
International Classes:
E03D5/016; B63B29/14; B63J4/00; (IPC1-7): E03D5/016; B63B29/14