Document Type and Number:
Japanese Patent JPS56141897
Kind Code:
U
Application Number:
JP4078680U
Publication Date:
October 26, 1981
Filing Date:
March 27, 1980
Export Citation:
International Classes:
B63B29/00; B63B19/12; B63B29/20; (IPC1-7): B63B29/20; B63B19/12