Document Type and Number:
Japanese Patent JPS57142578
Kind Code:
U
Application Number:
JP2952181U
Publication Date:
September 07, 1982
Filing Date:
March 02, 1981
Export Citation:
International Classes:
B63H9/04; B63B15/02; B63B35/79; (IPC1-7): A63C15/05; B63B15/02; B63H9/04