Document Type and Number:
Japanese Patent JPH0335890
Kind Code:
Y2
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Application Number:
JP8210087U
Publication Date:
July 30, 1991
Filing Date:
May 27, 1987
Export Citation:
International Classes:
F04B25/04; F04B27/08; F04B27/14; (IPC1-7): F04B27/08
Next Patent: JPH0335891