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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH01141996
Kind Code:
U
Application Number:
JP3717788U
Publication Date:
September 28, 1989
Filing Date:
March 23, 1988
Export Citation:
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International Classes:
F16L49/00; H01L21/22; (IPC1-7): F16L49/00; H01L21/22