Document Type and Number:
Japanese Patent JPS5228021
Kind Code:
Y2
Application Number:
JP9369374U
Publication Date:
June 25, 1977
Filing Date:
August 07, 1974
Export Citation:
International Classes:
F01N3/32; F01N3/10; F02M31/08; (IPC1-7): F02M31/08; F01N3/10