Document Type and Number:
Japanese Patent JPS4882721
Kind Code:
U
Application Number:
JP139871U
Publication Date:
October 08, 1973
Filing Date:
December 30, 1971
Export Citation:
International Classes:
E02B3/12; E01C3/00; E02B3/06; (IPC1-7): E01C3/00; E02B3/06