Document Type and Number:
Japanese Patent JPH0312920
Kind Code:
U
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Application Number:
JP6769489U
Publication Date:
February 08, 1991
Filing Date:
June 09, 1989
Export Citation:
International Classes:
E02B13/02; G05D9/12; (IPC1-7): E02B13/02; G05D9/12
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