Document Type and Number:
Japanese Patent JPS5627220
Kind Code:
Y2
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Application Number:
JP5245876U
Publication Date:
June 29, 1981
Filing Date:
April 28, 1976
Export Citation:
International Classes:
C04B7/44; F27D3/18; F27D13/00; (IPC1-7): C04B7/44; F27D3/18