Document Type and Number:
Japanese Patent JPS57109456
Kind Code:
U
Application Number:
JP19020780U
Publication Date:
July 06, 1982
Filing Date:
December 26, 1980
Export Citation:
International Classes:
F24J2/04; E04D13/00; E04D13/15; E04H9/16; F24D17/00; (IPC1-7): F24J3/02; E04D13/00; E04D13/15; E04H9/16; F24D17/00