Document Type and Number:
Japanese Patent JPS5753755
Kind Code:
Y2
Application Number:
JP4091579U
Publication Date:
November 20, 1982
Filing Date:
March 29, 1979
Export Citation:
International Classes:
B63H9/04; B63B15/00; B63B15/02; B63H9/00; (IPC1-7): B63B15/02