Document Type and Number:
Japanese Patent JPS4977506
Kind Code:
U
Application Number:
JP12173872U
Publication Date:
July 04, 1974
Filing Date:
October 21, 1972
Export Citation:
International Classes:
F01N1/22; F01N1/00; F01N1/08; F01N13/00; F01N99/00; F04B39/00; (IPC1-7): F01N1/22