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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03114085
Kind Code:
U
Application Number:
JP2295890U
Publication Date:
November 22, 1991
Filing Date:
March 07, 1990
Export Citation:
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International Classes:
G04B19/02; G04B19/247; G04B29/02; (IPC1-7): G04B29/02; G04B19/02; G04B19/247