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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0319919
Kind Code:
U
Application Number:
JP7961089U
Publication Date:
February 27, 1991
Filing Date:
July 07, 1989
Export Citation:
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International Classes:
G01F3/36; G01F15/14; G01F19/00; G12B9/02; (IPC1-7): G01F3/36; G01F19/00; G12B9/02
Domestic Patent References:
JPS6260681B21987-12-17