Document Type and Number:
Japanese Patent JPS57202707
Kind Code:
U
Application Number:
JP9007681U
Publication Date:
December 23, 1982
Filing Date:
June 18, 1981
Export Citation:
International Classes:
F01N13/08; F16L3/00; F16L3/04; (IPC1-7): F01N7/08; F16L3/04