Document Type and Number:
Japanese Patent JPS5420954
Kind Code:
Y2
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Application Number:
JP3982174U
Publication Date:
July 26, 1979
Filing Date:
April 09, 1974
Export Citation:
International Classes:
E01F9/00; E01F9/50; E01F9/506; E01F9/608; E01F9/615; E01F9/619; E01F9/673; (IPC1-7): E01F9/04