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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5227990
Kind Code:
Y2
Application Number:
JP245975U
Publication Date:
June 25, 1977
Filing Date:
December 28, 1974
Export Citation:
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International Classes:
B04B3/04; D06B15/10; (IPC1-7): D06B15/10; B04B3/04