Document Type and Number:
Japanese Patent JPH0247331
Kind Code:
Y2
Application Number:
JP9259389U
Publication Date:
December 12, 1990
Filing Date:
August 08, 1989
Export Citation:
International Classes:
F16K15/14; F04B39/10; F04B45/04; (IPC1-7): F16K15/14; F04B45/04