Document Type and Number:
Japanese Patent JPS4812804
Kind Code:
U
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Application Number:
JP5438671U
Publication Date:
February 13, 1973
Filing Date:
June 22, 1971
Export Citation:
International Classes:
E02D15/06; E04G21/02; E04G21/04; (IPC1-7): E02D15/06; E04G21/02