Document Type and Number:
Japanese Patent JPH0455010
Kind Code:
U
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Application Number:
JP9770690U
Publication Date:
May 12, 1992
Filing Date:
September 18, 1990
Export Citation:
International Classes:
G01C1/02; G01C15/00; G02B23/16; (IPC1-7): G02B23/16; G01C1/02; G01C15/00
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