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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS569904
Kind Code:
Y2
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Application Number:
JP12890274U
Publication Date:
March 05, 1981
Filing Date:
October 24, 1974
Export Citation:
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International Classes:
F16L29/00; F16L37/28; F24F13/00; F25B41/00; (IPC1-7): F16L29/00