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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03111539
Kind Code:
U
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Application Number:
JP1863790U
Publication Date:
November 14, 1991
Filing Date:
February 26, 1990
Export Citation:
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International Classes:
C04B35/64; H05K1/03; (IPC1-7): C04B35/64; H05K1/03