Document Type and Number:
Japanese Patent JPH0533521
Kind Code:
Y2
Application Number:
JP9474585U
Publication Date:
August 26, 1993
Filing Date:
June 21, 1985
Export Citation:
International Classes:
E01B27/00; B61J1/12; (IPC1-7): E01B27/00; B61J1/12
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