Document Type and Number:
Japanese Patent JPS568972
Kind Code:
Y2
Application Number:
JP11057975U
Publication Date:
February 27, 1981
Filing Date:
August 12, 1975
Export Citation:
International Classes:
E02B3/12; D04H1/54; D04H5/06; E02D17/20; E02D29/02; (IPC1-7): E02B3/12; E02D17/20; E02D29/02
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