Document Type and Number:
Japanese Patent JPH0221668
Kind Code:
Y2
Application Number:
JP2157383U
Publication Date:
June 11, 1990
Filing Date:
February 18, 1983
Export Citation:
International Classes:
F16K31/06; F16K31/08; (IPC1-7): F16K31/06
Next Patent: JPH0221669