Document Type and Number:
Japanese Patent JPH0310168
Kind Code:
Y2
Application Number:
JP8429584U
Publication Date:
March 13, 1991
Filing Date:
June 08, 1984
Export Citation:
International Classes:
E01D11/00; B25B25/00; E01D11/04; E01D19/16; E04G21/12; (IPC1-7): E01D11/00; E04G21/12
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