Document Type and Number:
Japanese Patent JPS4944773
Kind Code:
U
Application Number:
JP9187772U
Publication Date:
April 19, 1974
Filing Date:
August 03, 1972
Export Citation:
International Classes:
B02B1/08; B02B1/04; F24F3/14; (IPC1-7): B02B1/04; F24F3/14