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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0248681
Kind Code:
B2
Inventors:
WATANABE KUNIO
Application Number:
JP16270684A
Publication Date:
October 25, 1990
Filing Date:
July 31, 1984
Export Citation:
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Assignee:
WATANABE KUNIO
International Classes:
E01C5/22; B28B1/16; B28B23/00; E01C5/14