Document Type and Number:
Japanese Patent JPH0191914
Kind Code:
U
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Application Number:
JP18854287U
Publication Date:
June 16, 1989
Filing Date:
December 10, 1987
Export Citation:
International Classes:
F16K31/24; E03B11/00; G05D9/02; (IPC1-7): G05D9/02; E03B11/00; F16K31/24