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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03108299
Kind Code:
U
Application Number:
JP1661890U
Publication Date:
November 07, 1991
Filing Date:
February 20, 1990
Export Citation:
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International Classes:
G10H1/053; G10H1/34; (IPC1-7): G10H1/34; G10H1/053