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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5550233
Kind Code:
Y2
Application Number:
JP5215076U
Publication Date:
November 21, 1980
Filing Date:
April 27, 1976
Export Citation:
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International Classes:
E03D11/02; E03D9/02; E03D11/00; E03D11/11; (IPC1-7): E03D11/00