Document Type and Number:
Japanese Patent JPH0220621
Kind Code:
Y2
Application Number:
JP8206783U
Publication Date:
June 05, 1990
Filing Date:
May 31, 1983
Export Citation:
International Classes:
F23D11/08; F23D11/04; F23Q3/00; (IPC1-7): F23Q3/00; F23D11/08
Next Patent: MANUFACTURE OF WELDED CURVED STEEL PIPE