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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0423052
Kind Code:
B2
Inventors:
SHIOTANI MAKOTO
FUNABASHI SEIJU
SHINOMYA FUMITO
SHIMAUCHI SHIGEYUKI
Application Number:
JP4067983A
Publication Date:
April 21, 1992
Filing Date:
March 14, 1983
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
E03F3/00; E03F1/00; G05D7/00; G05D9/12