Document Type and Number:
Japanese Patent JPS5047391
Kind Code:
U
Application Number:
JP10052273U
Publication Date:
May 10, 1975
Filing Date:
August 28, 1973
Export Citation:
International Classes:
E01F7/00; E01F9/00; E01F9/60; E01F9/608; E01F9/623; E01F9/658; E01F9/696; G09F7/18; G09F7/22; G09F9/00; G09F15/00; (IPC1-7): E01F9/01; G09F7/18; G09F9/00