Document Type and Number:
Japanese Patent JPS6228555
Kind Code:
Y2
Application Number:
JP3727082U
Publication Date:
July 22, 1987
Filing Date:
March 16, 1982
Export Citation:
International Classes:
B63B17/02; B63B19/00; B63B19/02; (IPC1-7): B63B19/00; B63B17/02