Document Type and Number:
Japanese Patent JPS5430498
Kind Code:
U
Application Number:
JP10287977U
Publication Date:
February 28, 1979
Filing Date:
July 30, 1977
Export Citation:
International Classes:
B63H21/38; B63B13/00; B63B13/02; B63H21/00; (IPC1-7): B63B13/02; B63H21/00