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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5231549
Kind Code:
Y2
Application Number:
JP3773073U
Publication Date:
July 19, 1977
Filing Date:
March 28, 1973
Export Citation:
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International Classes:
E04F13/08; E04C2/26; E04C2/30; E04C2/38; E04F13/18; (IPC1-7): E04C2/26; E04C2/38; E04F13/18