Document Type and Number:
Japanese Patent JPS64598
Kind Code:
B2
Inventors:
MYAMOTO AKIRA
Application Number:
JP6712580A
Publication Date:
January 06, 1989
Filing Date:
May 22, 1980
Export Citation:
Assignee:
HITACHI LTD
International Classes:
E03F3/00; E03F1/00; F04B49/06; F04D15/00; G05D7/00; G05D7/06; G05D9/00; G05D9/12
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