Document Type and Number:
Japanese Patent JPS4849187
Kind Code:
A
Application Number:
JP7068571A
Publication Date:
July 11, 1973
Filing Date:
September 10, 1971
Export Citation:
International Classes:
E03D5/016; B63B29/14; B63B29/16; B63J4/00; (IPC1-7): B63B29/14