Document Type and Number:
Japanese Patent JPS5425838
Kind Code:
Y2
Application Number:
JP12534073U
Publication Date:
August 28, 1979
Filing Date:
October 31, 1973
Export Citation:
International Classes:
G01D21/00; B63B21/30; B63B51/02; B63C11/48; G01W1/00; (IPC1-7): B63B21/30; G01D21/00