Document Type and Number:
Japanese Patent JPS6215653
Kind Code:
Y2
Application Number:
JP15813781U
Publication Date:
April 21, 1987
Filing Date:
October 23, 1981
Export Citation:
International Classes:
F28D3/00; F28D3/04; F28F25/04; (IPC1-7): F28D3/04; F28F25/04
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