Document Type and Number:
Japanese Patent JPS5419677
Kind Code:
Y2
Application Number:
JP4320375U
Publication Date:
July 19, 1979
Filing Date:
March 31, 1975
Export Citation:
International Classes:
B63B5/24; B63B3/14; B63B11/00; B63H9/04; (IPC1-7): B63B3/14; B63B5/24